diff options
Diffstat (limited to 'avplay.c')
| -rw-r--r-- | avplay.c | 3071 |
1 files changed, 3071 insertions, 0 deletions
diff --git a/avplay.c b/avplay.c new file mode 100644 index 0000000..f43cf6f --- /dev/null +++ b/avplay.c @@ -0,0 +1,3071 @@ +/* + * avplay : Simple Media Player based on the Libav libraries + * Copyright (c) 2003 Fabrice Bellard + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" +#include <inttypes.h> +#include <math.h> +#include <limits.h> +#include "libavutil/avstring.h" +#include "libavutil/colorspace.h" +#include "libavutil/mathematics.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/dict.h" +#include "libavutil/parseutils.h" +#include "libavutil/samplefmt.h" +#include "libavformat/avformat.h" +#include "libavdevice/avdevice.h" +#include "libswscale/swscale.h" +#include "libavcodec/audioconvert.h" +#include "libavutil/opt.h" +#include "libavcodec/avfft.h" + +#if CONFIG_AVFILTER +# include "libavfilter/avfilter.h" +# include "libavfilter/avfiltergraph.h" +#endif + +#include "cmdutils.h" + +#include <SDL.h> +#include <SDL_thread.h> + +#ifdef __MINGW32__ +#undef main /* We don't want SDL to override our main() */ +#endif + +#include <unistd.h> +#include <assert.h> + +const char program_name[] = "avplay"; +const int program_birth_year = 2003; + +#define MAX_QUEUE_SIZE (15 * 1024 * 1024) +#define MIN_AUDIOQ_SIZE (20 * 16 * 1024) +#define MIN_FRAMES 5 + +/* SDL audio buffer size, in samples. Should be small to have precise + A/V sync as SDL does not have hardware buffer fullness info. */ +#define SDL_AUDIO_BUFFER_SIZE 1024 + +/* no AV sync correction is done if below the AV sync threshold */ +#define AV_SYNC_THRESHOLD 0.01 +/* no AV correction is done if too big error */ +#define AV_NOSYNC_THRESHOLD 10.0 + +#define FRAME_SKIP_FACTOR 0.05 + +/* maximum audio speed change to get correct sync */ +#define SAMPLE_CORRECTION_PERCENT_MAX 10 + +/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ +#define AUDIO_DIFF_AVG_NB 20 + +/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ +#define SAMPLE_ARRAY_SIZE (2*65536) + +static int sws_flags = SWS_BICUBIC; + +typedef struct PacketQueue { + AVPacketList *first_pkt, *last_pkt; + int nb_packets; + int size; + int abort_request; + SDL_mutex *mutex; + SDL_cond *cond; +} PacketQueue; + +#define VIDEO_PICTURE_QUEUE_SIZE 2 +#define SUBPICTURE_QUEUE_SIZE 4 + +typedef struct VideoPicture { + double pts; ///<presentation time stamp for this picture + double target_clock; ///<av_gettime() time at which this should be displayed ideally + int64_t pos; ///<byte position in file + SDL_Overlay *bmp; + int width, height; /* source height & width */ + int allocated; + enum PixelFormat pix_fmt; + +#if CONFIG_AVFILTER + AVFilterBufferRef *picref; +#endif +} VideoPicture; + +typedef struct SubPicture { + double pts; /* presentation time stamp for this picture */ + AVSubtitle sub; +} SubPicture; + +enum { + AV_SYNC_AUDIO_MASTER, /* default choice */ + AV_SYNC_VIDEO_MASTER, + AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ +}; + +typedef struct VideoState { + SDL_Thread *parse_tid; + SDL_Thread *video_tid; + SDL_Thread *refresh_tid; + AVInputFormat *iformat; + int no_background; + int abort_request; + int paused; + int last_paused; + int seek_req; + int seek_flags; + int64_t seek_pos; + int64_t seek_rel; + int read_pause_return; + AVFormatContext *ic; + int dtg_active_format; + + int audio_stream; + + int av_sync_type; + double external_clock; /* external clock base */ + int64_t external_clock_time; + + double audio_clock; + double audio_diff_cum; /* used for AV difference average computation */ + double audio_diff_avg_coef; + double audio_diff_threshold; + int audio_diff_avg_count; + AVStream *audio_st; + PacketQueue audioq; + int audio_hw_buf_size; + /* samples output by the codec. we reserve more space for avsync + compensation */ + DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; + DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; + uint8_t *audio_buf; + unsigned int audio_buf_size; /* in bytes */ + int audio_buf_index; /* in bytes */ + AVPacket audio_pkt_temp; + AVPacket audio_pkt; + enum AVSampleFormat audio_src_fmt; + AVAudioConvert *reformat_ctx; + + int show_audio; /* if true, display audio samples */ + int16_t sample_array[SAMPLE_ARRAY_SIZE]; + int sample_array_index; + int last_i_start; + RDFTContext *rdft; + int rdft_bits; + FFTSample *rdft_data; + int xpos; + + SDL_Thread *subtitle_tid; + int subtitle_stream; + int subtitle_stream_changed; + AVStream *subtitle_st; + PacketQueue subtitleq; + SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; + int subpq_size, subpq_rindex, subpq_windex; + SDL_mutex *subpq_mutex; + SDL_cond *subpq_cond; + + double frame_timer; + double frame_last_pts; + double frame_last_delay; + double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame + int video_stream; + AVStream *video_st; + PacketQueue videoq; + double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used) + double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts + int64_t video_current_pos; ///<current displayed file pos + VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; + int pictq_size, pictq_rindex, pictq_windex; + SDL_mutex *pictq_mutex; + SDL_cond *pictq_cond; +#if !CONFIG_AVFILTER + struct SwsContext *img_convert_ctx; +#endif + + // QETimer *video_timer; + char filename[1024]; + int width, height, xleft, ytop; + + PtsCorrectionContext pts_ctx; + +#if CONFIG_AVFILTER + AVFilterContext *out_video_filter; ///<the last filter in the video chain +#endif + + float skip_frames; + float skip_frames_index; + int refresh; +} VideoState; + +static void show_help(void); + +/* options specified by the user */ +static AVInputFormat *file_iformat; +static const char *input_filename; +static const char *window_title; +static int fs_screen_width; +static int fs_screen_height; +static int screen_width = 0; +static int screen_height = 0; +static int audio_disable; +static int video_disable; +static int wanted_stream[AVMEDIA_TYPE_NB]={ + [AVMEDIA_TYPE_AUDIO]=-1, + [AVMEDIA_TYPE_VIDEO]=-1, + [AVMEDIA_TYPE_SUBTITLE]=-1, +}; +static int seek_by_bytes=-1; +static int display_disable; +static int show_status = 1; +static int av_sync_type = AV_SYNC_AUDIO_MASTER; +static int64_t start_time = AV_NOPTS_VALUE; +static int64_t duration = AV_NOPTS_VALUE; +static int debug = 0; +static int debug_mv = 0; +static int step = 0; +static int thread_count = 1; +static int workaround_bugs = 1; +static int fast = 0; +static int genpts = 0; +static int lowres = 0; +static int idct = FF_IDCT_AUTO; +static enum AVDiscard skip_frame= AVDISCARD_DEFAULT; +static enum AVDiscard skip_idct= AVDISCARD_DEFAULT; +static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT; +static int error_recognition = FF_ER_CAREFUL; +static int error_concealment = 3; +static int decoder_reorder_pts= -1; +static int autoexit; +static int exit_on_keydown; +static int exit_on_mousedown; +static int loop=1; +static int framedrop=1; + +static int rdftspeed=20; +#if CONFIG_AVFILTER +static char *vfilters = NULL; +#endif + +/* current context */ +static int is_full_screen; +static VideoState *cur_stream; +static int64_t audio_callback_time; + +static AVPacket flush_pkt; + +#define FF_ALLOC_EVENT (SDL_USEREVENT) +#define FF_REFRESH_EVENT (SDL_USEREVENT + 1) +#define FF_QUIT_EVENT (SDL_USEREVENT + 2) + +static SDL_Surface *screen; + +static int packet_queue_put(PacketQueue *q, AVPacket *pkt); + +/* packet queue handling */ +static void packet_queue_init(PacketQueue *q) +{ + memset(q, 0, sizeof(PacketQueue)); + q->mutex = SDL_CreateMutex(); + q->cond = SDL_CreateCond(); + packet_queue_put(q, &flush_pkt); +} + +static void packet_queue_flush(PacketQueue *q) +{ + AVPacketList *pkt, *pkt1; + + SDL_LockMutex(q->mutex); + for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { + pkt1 = pkt->next; + av_free_packet(&pkt->pkt); + av_freep(&pkt); + } + q->last_pkt = NULL; + q->first_pkt = NULL; + q->nb_packets = 0; + q->size = 0; + SDL_UnlockMutex(q->mutex); +} + +static void packet_queue_end(PacketQueue *q) +{ + packet_queue_flush(q); + SDL_DestroyMutex(q->mutex); + SDL_DestroyCond(q->cond); +} + +static int packet_queue_put(PacketQueue *q, AVPacket *pkt) +{ + AVPacketList *pkt1; + + /* duplicate the packet */ + if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0) + return -1; + + pkt1 = av_malloc(sizeof(AVPacketList)); + if (!pkt1) + return -1; + pkt1->pkt = *pkt; + pkt1->next = NULL; + + + SDL_LockMutex(q->mutex); + + if (!q->last_pkt) + + q->first_pkt = pkt1; + else + q->last_pkt->next = pkt1; + q->last_pkt = pkt1; + q->nb_packets++; + q->size += pkt1->pkt.size + sizeof(*pkt1); + /* XXX: should duplicate packet data in DV case */ + SDL_CondSignal(q->cond); + + SDL_UnlockMutex(q->mutex); + return 0; +} + +static void packet_queue_abort(PacketQueue *q) +{ + SDL_LockMutex(q->mutex); + + q->abort_request = 1; + + SDL_CondSignal(q->cond); + + SDL_UnlockMutex(q->mutex); +} + +/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ +static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block) +{ + AVPacketList *pkt1; + int ret; + + SDL_LockMutex(q->mutex); + + for(;;) { + if (q->abort_request) { + ret = -1; + break; + } + + pkt1 = q->first_pkt; + if (pkt1) { + q->first_pkt = pkt1->next; + if (!q->first_pkt) + q->last_pkt = NULL; + q->nb_packets--; + q->size -= pkt1->pkt.size + sizeof(*pkt1); + *pkt = pkt1->pkt; + av_free(pkt1); + ret = 1; + break; + } else if (!block) { + ret = 0; + break; + } else { + SDL_CondWait(q->cond, q->mutex); + } + } + SDL_UnlockMutex(q->mutex); + return ret; +} + +static inline void fill_rectangle(SDL_Surface *screen, + int x, int y, int w, int h, int color) +{ + SDL_Rect rect; + rect.x = x; + rect.y = y; + rect.w = w; + rect.h = h; + SDL_FillRect(screen, &rect, color); +} + +#define ALPHA_BLEND(a, oldp, newp, s)\ +((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) + +#define RGBA_IN(r, g, b, a, s)\ +{\ + unsigned int v = ((const uint32_t *)(s))[0];\ + a = (v >> 24) & 0xff;\ + r = (v >> 16) & 0xff;\ + g = (v >> 8) & 0xff;\ + b = v & 0xff;\ +} + +#define YUVA_IN(y, u, v, a, s, pal)\ +{\ + unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ + a = (val >> 24) & 0xff;\ + y = (val >> 16) & 0xff;\ + u = (val >> 8) & 0xff;\ + v = val & 0xff;\ +} + +#define YUVA_OUT(d, y, u, v, a)\ +{\ + ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ +} + + +#define BPP 1 + +static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) +{ + int wrap, wrap3, width2, skip2; + int y, u, v, a, u1, v1, a1, w, h; + uint8_t *lum, *cb, *cr; + const uint8_t *p; + const uint32_t *pal; + int dstx, dsty, dstw, dsth; + + dstw = av_clip(rect->w, 0, imgw); + dsth = av_clip(rect->h, 0, imgh); + dstx = av_clip(rect->x, 0, imgw - dstw); + dsty = av_clip(rect->y, 0, imgh - dsth); + lum = dst->data[0] + dsty * dst->linesize[0]; + cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; + cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; + + width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); + skip2 = dstx >> 1; + wrap = dst->linesize[0]; + wrap3 = rect->pict.linesize[0]; + p = rect->pict.data[0]; + pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ + + if (dsty & 1) { + lum += dstx; + cb += skip2; + cr += skip2; + + if (dstx & 1) { + YUVA_IN(y, u, v, a, p, pal); + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); + cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); + cb++; + cr++; + lum++; + p += BPP; + } + for(w = dstw - (dstx & 1); w >= 2; w -= 2) { + YUVA_IN(y, u, v, a, p, pal); + u1 = u; + v1 = v; + a1 = a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + + YUVA_IN(y, u, v, a, p + BPP, pal); + u1 += u; + v1 += v; + a1 += a; + lum[1] = ALPHA_BLEND(a, lum[1], y, 0); + cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); + cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); + cb++; + cr++; + p += 2 * BPP; + lum += 2; + } + if (w) { + YUVA_IN(y, u, v, a, p, pal); + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); + cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); + p++; + lum++; + } + p += wrap3 - dstw * BPP; + lum += wrap - dstw - dstx; + cb += dst->linesize[1] - width2 - skip2; + cr += dst->linesize[2] - width2 - skip2; + } + for(h = dsth - (dsty & 1); h >= 2; h -= 2) { + lum += dstx; + cb += skip2; + cr += skip2; + + if (dstx & 1) { + YUVA_IN(y, u, v, a, p, pal); + u1 = u; + v1 = v; + a1 = a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + p += wrap3; + lum += wrap; + YUVA_IN(y, u, v, a, p, pal); + u1 += u; + v1 += v; + a1 += a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); + cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); + cb++; + cr++; + p += -wrap3 + BPP; + lum += -wrap + 1; + } + for(w = dstw - (dstx & 1); w >= 2; w -= 2) { + YUVA_IN(y, u, v, a, p, pal); + u1 = u; + v1 = v; + a1 = a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + + YUVA_IN(y, u, v, a, p + BPP, pal); + u1 += u; + v1 += v; + a1 += a; + lum[1] = ALPHA_BLEND(a, lum[1], y, 0); + p += wrap3; + lum += wrap; + + YUVA_IN(y, u, v, a, p, pal); + u1 += u; + v1 += v; + a1 += a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + + YUVA_IN(y, u, v, a, p + BPP, pal); + u1 += u; + v1 += v; + a1 += a; + lum[1] = ALPHA_BLEND(a, lum[1], y, 0); + + cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); + cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); + + cb++; + cr++; + p += -wrap3 + 2 * BPP; + lum += -wrap + 2; + } + if (w) { + YUVA_IN(y, u, v, a, p, pal); + u1 = u; + v1 = v; + a1 = a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + p += wrap3; + lum += wrap; + YUVA_IN(y, u, v, a, p, pal); + u1 += u; + v1 += v; + a1 += a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); + cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); + cb++; + cr++; + p += -wrap3 + BPP; + lum += -wrap + 1; + } + p += wrap3 + (wrap3 - dstw * BPP); + lum += wrap + (wrap - dstw - dstx); + cb += dst->linesize[1] - width2 - skip2; + cr += dst->linesize[2] - width2 - skip2; + } + /* handle odd height */ + if (h) { + lum += dstx; + cb += skip2; + cr += skip2; + + if (dstx & 1) { + YUVA_IN(y, u, v, a, p, pal); + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); + cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); + cb++; + cr++; + lum++; + p += BPP; + } + for(w = dstw - (dstx & 1); w >= 2; w -= 2) { + YUVA_IN(y, u, v, a, p, pal); + u1 = u; + v1 = v; + a1 = a; + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + + YUVA_IN(y, u, v, a, p + BPP, pal); + u1 += u; + v1 += v; + a1 += a; + lum[1] = ALPHA_BLEND(a, lum[1], y, 0); + cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); + cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); + cb++; + cr++; + p += 2 * BPP; + lum += 2; + } + if (w) { + YUVA_IN(y, u, v, a, p, pal); + lum[0] = ALPHA_BLEND(a, lum[0], y, 0); + cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); + cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); + } + } +} + +static void free_subpicture(SubPicture *sp) +{ + avsubtitle_free(&sp->sub); +} + +static void video_image_display(VideoState *is) +{ + VideoPicture *vp; + SubPicture *sp; + AVPicture pict; + float aspect_ratio; + int width, height, x, y; + SDL_Rect rect; + int i; + + vp = &is->pictq[is->pictq_rindex]; + if (vp->bmp) { +#if CONFIG_AVFILTER + if (vp->picref->video->pixel_aspect.num == 0) + aspect_ratio = 0; + else + aspect_ratio = av_q2d(vp->picref->video->pixel_aspect); +#else + + /* XXX: use variable in the frame */ + if (is->video_st->sample_aspect_ratio.num) + aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio); + else if (is->video_st->codec->sample_aspect_ratio.num) + aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio); + else + aspect_ratio = 0; +#endif + if (aspect_ratio <= 0.0) + aspect_ratio = 1.0; + aspect_ratio *= (float)vp->width / (float)vp->height; + + if (is->subtitle_st) + { + if (is->subpq_size > 0) + { + sp = &is->subpq[is->subpq_rindex]; + + if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) + { + SDL_LockYUVOverlay (vp->bmp); + + pict.data[0] = vp->bmp->pixels[0]; + pict.data[1] = vp->bmp->pixels[2]; + pict.data[2] = vp->bmp->pixels[1]; + + pict.linesize[0] = vp->bmp->pitches[0]; + pict.linesize[1] = vp->bmp->pitches[2]; + pict.linesize[2] = vp->bmp->pitches[1]; + + for (i = 0; i < sp->sub.num_rects; i++) + blend_subrect(&pict, sp->sub.rects[i], + vp->bmp->w, vp->bmp->h); + + SDL_UnlockYUVOverlay (vp->bmp); + } + } + } + + + /* XXX: we suppose the screen has a 1.0 pixel ratio */ + height = is->height; + width = ((int)rint(height * aspect_ratio)) & ~1; + if (width > is->width) { + width = is->width; + height = ((int)rint(width / aspect_ratio)) & ~1; + } + x = (is->width - width) / 2; + y = (is->height - height) / 2; + is->no_background = 0; + rect.x = is->xleft + x; + rect.y = is->ytop + y; + rect.w = width; + rect.h = height; + SDL_DisplayYUVOverlay(vp->bmp, &rect); + } +} + +/* get the current audio output buffer size, in samples. With SDL, we + cannot have a precise information */ +static int audio_write_get_buf_size(VideoState *is) +{ + return is->audio_buf_size - is->audio_buf_index; +} + +static inline int compute_mod(int a, int b) +{ + a = a % b; + if (a >= 0) + return a; + else + return a + b; +} + +static void video_audio_display(VideoState *s) +{ + int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; + int ch, channels, h, h2, bgcolor, fgcolor; + int16_t time_diff; + int rdft_bits, nb_freq; + + for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++) + ; + nb_freq= 1<<(rdft_bits-1); + + /* compute display index : center on currently output samples */ + channels = s->audio_st->codec->channels; + nb_display_channels = channels; + if (!s->paused) { + int data_used= s->show_audio==1 ? s->width : (2*nb_freq); + n = 2 * channels; + delay = audio_write_get_buf_size(s); + delay /= n; + + /* to be more precise, we take into account the time spent since + the last buffer computation */ + if (audio_callback_time) { + time_diff = av_gettime() - audio_callback_time; + delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000; + } + + delay += 2*data_used; + if (delay < data_used) + delay = data_used; + + i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); + if(s->show_audio==1){ + h= INT_MIN; + for(i=0; i<1000; i+=channels){ + int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; + int a= s->sample_array[idx]; + int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE]; + int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE]; + int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE]; + int score= a-d; + if(h<score && (b^c)<0){ + h= score; + i_start= idx; + } + } + } + + s->last_i_start = i_start; + } else { + i_start = s->last_i_start; + } + + bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); + if(s->show_audio==1){ + fill_rectangle(screen, + s->xleft, s->ytop, s->width, s->height, + bgcolor); + + fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); + + /* total height for one channel */ + h = s->height / nb_display_channels; + /* graph height / 2 */ + h2 = (h * 9) / 20; + for(ch = 0;ch < nb_display_channels; ch++) { + i = i_start + ch; + y1 = s->ytop + ch * h + (h / 2); /* position of center line */ + for(x = 0; x < s->width; x++) { + y = (s->sample_array[i] * h2) >> 15; + if (y < 0) { + y = -y; + ys = y1 - y; + } else { + ys = y1; + } + fill_rectangle(screen, + s->xleft + x, ys, 1, y, + fgcolor); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + } + + fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); + + for(ch = 1;ch < nb_display_channels; ch++) { + y = s->ytop + ch * h; + fill_rectangle(screen, + s->xleft, y, s->width, 1, + fgcolor); + } + SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); + }else{ + nb_display_channels= FFMIN(nb_display_channels, 2); + if(rdft_bits != s->rdft_bits){ + av_rdft_end(s->rdft); + av_free(s->rdft_data); + s->rdft = av_rdft_init(rdft_bits, DFT_R2C); + s->rdft_bits= rdft_bits; + s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data)); + } + { + FFTSample *data[2]; + for(ch = 0;ch < nb_display_channels; ch++) { + data[ch] = s->rdft_data + 2*nb_freq*ch; + i = i_start + ch; + for(x = 0; x < 2*nb_freq; x++) { + double w= (x-nb_freq)*(1.0/nb_freq); + data[ch][x]= s->sample_array[i]*(1.0-w*w); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + av_rdft_calc(s->rdft, data[ch]); + } + //least efficient way to do this, we should of course directly access it but its more than fast enough + for(y=0; y<s->height; y++){ + double w= 1/sqrt(nb_freq); + int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1])); + int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + + data[1][2*y+1]*data[1][2*y+1])) : a; + a= FFMIN(a,255); + b= FFMIN(b,255); + fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2); + + fill_rectangle(screen, + s->xpos, s->height-y, 1, 1, + fgcolor); + } + } + SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); + s->xpos++; + if(s->xpos >= s->width) + s->xpos= s->xleft; + } +} + +static int video_open(VideoState *is){ + int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; + int w,h; + + if(is_full_screen) flags |= SDL_FULLSCREEN; + else flags |= SDL_RESIZABLE; + + if (is_full_screen && fs_screen_width) { + w = fs_screen_width; + h = fs_screen_height; + } else if(!is_full_screen && screen_width){ + w = screen_width; + h = screen_height; +#if CONFIG_AVFILTER + }else if (is->out_video_filter && is->out_video_filter->inputs[0]){ + w = is->out_video_filter->inputs[0]->w; + h = is->out_video_filter->inputs[0]->h; +#else + }else if (is->video_st && is->video_st->codec->width){ + w = is->video_st->codec->width; + h = is->video_st->codec->height; +#endif + } else { + w = 640; + h = 480; + } + if(screen && is->width == screen->w && screen->w == w + && is->height== screen->h && screen->h == h) + return 0; + +#ifndef __APPLE__ + screen = SDL_SetVideoMode(w, h, 0, flags); +#else + /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */ + screen = SDL_SetVideoMode(w, h, 24, flags); +#endif + if (!screen) { + fprintf(stderr, "SDL: could not set video mode - exiting\n"); + return -1; + } + if (!window_title) + window_title = input_filename; + SDL_WM_SetCaption(window_title, window_title); + + is->width = screen->w; + is->height = screen->h; + + return 0; +} + +/* display the current picture, if any */ +static void video_display(VideoState *is) +{ + if(!screen) + video_open(cur_stream); + if (is->audio_st && is->show_audio) + video_audio_display(is); + else if (is->video_st) + video_image_display(is); +} + +static int refresh_thread(void *opaque) +{ + VideoState *is= opaque; + while(!is->abort_request){ + SDL_Event event; + event.type = FF_REFRESH_EVENT; + event.user.data1 = opaque; + if(!is->refresh){ + is->refresh=1; + SDL_PushEvent(&event); + } + usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly + } + return 0; +} + +/* get the current audio clock value */ +static double get_audio_clock(VideoState *is) +{ + double pts; + int hw_buf_size, bytes_per_sec; + pts = is->audio_clock; + hw_buf_size = audio_write_get_buf_size(is); + bytes_per_sec = 0; + if (is->audio_st) { + bytes_per_sec = is->audio_st->codec->sample_rate * + 2 * is->audio_st->codec->channels; + } + if (bytes_per_sec) + pts -= (double)hw_buf_size / bytes_per_sec; + return pts; +} + +/* get the current video clock value */ +static double get_video_clock(VideoState *is) +{ + if (is->paused) { + return is->video_current_pts; + } else { + return is->video_current_pts_drift + av_gettime() / 1000000.0; + } +} + +/* get the current external clock value */ +static double get_external_clock(VideoState *is) +{ + int64_t ti; + ti = av_gettime(); + return is->external_clock + ((ti - is->external_clock_time) * 1e-6); +} + +/* get the current master clock value */ +static double get_master_clock(VideoState *is) +{ + double val; + + if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { + if (is->video_st) + val = get_video_clock(is); + else + val = get_audio_clock(is); + } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { + if (is->audio_st) + val = get_audio_clock(is); + else + val = get_video_clock(is); + } else { + val = get_external_clock(is); + } + return val; +} + +/* seek in the stream */ +static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) +{ + if (!is->seek_req) { + is->seek_pos = pos; + is->seek_rel = rel; + is->seek_flags &= ~AVSEEK_FLAG_BYTE; + if (seek_by_bytes) + is->seek_flags |= AVSEEK_FLAG_BYTE; + is->seek_req = 1; + } +} + +/* pause or resume the video */ +static void stream_pause(VideoState *is) +{ + if (is->paused) { + is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts; + if(is->read_pause_return != AVERROR(ENOSYS)){ + is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0; + } + is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0; + } + is->paused = !is->paused; +} + +static double compute_target_time(double frame_current_pts, VideoState *is) +{ + double delay, sync_threshold, diff; + + /* compute nominal delay */ + delay = frame_current_pts - is->frame_last_pts; + if (delay <= 0 || delay >= 10.0) { + /* if incorrect delay, use previous one */ + delay = is->frame_last_delay; + } else { + is->frame_last_delay = delay; + } + is->frame_last_pts = frame_current_pts; + + /* update delay to follow master synchronisation source */ + if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || + is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { + /* if video is slave, we try to correct big delays by + duplicating or deleting a frame */ + diff = get_video_clock(is) - get_master_clock(is); + + /* skip or repeat frame. We take into account the + delay to compute the threshold. I still don't know + if it is the best guess */ + sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay); + if (fabs(diff) < AV_NOSYNC_THRESHOLD) { + if (diff <= -sync_threshold) + delay = 0; + else if (diff >= sync_threshold) + delay = 2 * delay; + } + } + is->frame_timer += delay; + + av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n", + delay, frame_current_pts, -diff); + + return is->frame_timer; +} + +/* called to display each frame */ +static void video_refresh_timer(void *opaque) +{ + VideoState *is = opaque; + VideoPicture *vp; + + SubPicture *sp, *sp2; + + if (is->video_st) { +retry: + if (is->pictq_size == 0) { + //nothing to do, no picture to display in the que + } else { + double time= av_gettime()/1000000.0; + double next_target; + /* dequeue the picture */ + vp = &is->pictq[is->pictq_rindex]; + + if(time < vp->target_clock) + return; + /* update current video pts */ + is->video_current_pts = vp->pts; + is->video_current_pts_drift = is->video_current_pts - time; + is->video_current_pos = vp->pos; + if(is->pictq_size > 1){ + VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE]; + assert(nextvp->target_clock >= vp->target_clock); + next_target= nextvp->target_clock; + }else{ + next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly + } + if(framedrop && time > next_target){ + is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR; + if(is->pictq_size > 1 || time > next_target + 0.5){ + /* update queue size and signal for next picture */ + if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) + is->pictq_rindex = 0; + + SDL_LockMutex(is->pictq_mutex); + is->pictq_size--; + SDL_CondSignal(is->pictq_cond); + SDL_UnlockMutex(is->pictq_mutex); + goto retry; + } + } + + if(is->subtitle_st) { + if (is->subtitle_stream_changed) { + SDL_LockMutex(is->subpq_mutex); + + while (is->subpq_size) { + free_subpicture(&is->subpq[is->subpq_rindex]); + + /* update queue size and signal for next picture */ + if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) + is->subpq_rindex = 0; + + is->subpq_size--; + } + is->subtitle_stream_changed = 0; + + SDL_CondSignal(is->subpq_cond); + SDL_UnlockMutex(is->subpq_mutex); + } else { + if (is->subpq_size > 0) { + sp = &is->subpq[is->subpq_rindex]; + + if (is->subpq_size > 1) + sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; + else + sp2 = NULL; + + if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) + || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) + { + free_subpicture(sp); + + /* update queue size and signal for next picture */ + if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) + is->subpq_rindex = 0; + + SDL_LockMutex(is->subpq_mutex); + is->subpq_size--; + SDL_CondSignal(is->subpq_cond); + SDL_UnlockMutex(is->subpq_mutex); + } + } + } + } + + /* display picture */ + if (!display_disable) + video_display(is); + + /* update queue size and signal for next picture */ + if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) + is->pictq_rindex = 0; + + SDL_LockMutex(is->pictq_mutex); + is->pictq_size--; + SDL_CondSignal(is->pictq_cond); + SDL_UnlockMutex(is->pictq_mutex); + } + } else if (is->audio_st) { + /* draw the next audio frame */ + + /* if only audio stream, then display the audio bars (better + than nothing, just to test the implementation */ + + /* display picture */ + if (!display_disable) + video_display(is); + } + if (show_status) { + static int64_t last_time; + int64_t cur_time; + int aqsize, vqsize, sqsize; + double av_diff; + + cur_time = av_gettime(); + if (!last_time || (cur_time - last_time) >= 30000) { + aqsize = 0; + vqsize = 0; + sqsize = 0; + if (is->audio_st) + aqsize = is->audioq.size; + if (is->video_st) + vqsize = is->videoq.size; + if (is->subtitle_st) + sqsize = is->subtitleq.size; + av_diff = 0; + if (is->audio_st && is->video_st) + av_diff = get_audio_clock(is) - get_video_clock(is); + printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", + get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts); + fflush(stdout); + last_time = cur_time; + } + } +} + +static void stream_close(VideoState *is) +{ + VideoPicture *vp; + int i; + /* XXX: use a special url_shutdown call to abort parse cleanly */ + is->abort_request = 1; + SDL_WaitThread(is->parse_tid, NULL); + SDL_WaitThread(is->refresh_tid, NULL); + + /* free all pictures */ + for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) { + vp = &is->pictq[i]; +#if CONFIG_AVFILTER + if (vp->picref) { + avfilter_unref_buffer(vp->picref); + vp->picref = NULL; + } +#endif + if (vp->bmp) { + SDL_FreeYUVOverlay(vp->bmp); + vp->bmp = NULL; + } + } + SDL_DestroyMutex(is->pictq_mutex); + SDL_DestroyCond(is->pictq_cond); + SDL_DestroyMutex(is->subpq_mutex); + SDL_DestroyCond(is->subpq_cond); +#if !CONFIG_AVFILTER + if (is->img_convert_ctx) + sws_freeContext(is->img_convert_ctx); +#endif + av_free(is); +} + +static void do_exit(void) +{ + if (cur_stream) { + stream_close(cur_stream); + cur_stream = NULL; + } + uninit_opts(); +#if CONFIG_AVFILTER + avfilter_uninit(); +#endif + if (show_status) + printf("\n"); + SDL_Quit(); + av_log(NULL, AV_LOG_QUIET, ""); + exit(0); +} + +/* allocate a picture (needs to do that in main thread to avoid + potential locking problems */ +static void alloc_picture(void *opaque) +{ + VideoState *is = opaque; + VideoPicture *vp; + + vp = &is->pictq[is->pictq_windex]; + + if (vp->bmp) + SDL_FreeYUVOverlay(vp->bmp); + +#if CONFIG_AVFILTER + if (vp->picref) + avfilter_unref_buffer(vp->picref); + vp->picref = NULL; + + vp->width = is->out_video_filter->inputs[0]->w; + vp->height = is->out_video_filter->inputs[0]->h; + vp->pix_fmt = is->out_video_filter->inputs[0]->format; +#else + vp->width = is->video_st->codec->width; + vp->height = is->video_st->codec->height; + vp->pix_fmt = is->video_st->codec->pix_fmt; +#endif + + vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, + SDL_YV12_OVERLAY, + screen); + if (!vp->bmp || vp->bmp->pitches[0] < vp->width) { + /* SDL allocates a buffer smaller than requested if the video + * overlay hardware is unable to support the requested size. */ + fprintf(stderr, "Error: the video system does not support an image\n" + "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" + "to reduce the image size.\n", vp->width, vp->height ); + do_exit(); + } + + SDL_LockMutex(is->pictq_mutex); + vp->allocated = 1; + SDL_CondSignal(is->pictq_cond); + SDL_UnlockMutex(is->pictq_mutex); +} + +/** + * + * @param pts the dts of the pkt / pts of the frame and guessed if not known + */ +static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos) +{ + VideoPicture *vp; +#if CONFIG_AVFILTER + AVPicture pict_src; +#else + int dst_pix_fmt = PIX_FMT_YUV420P; +#endif + /* wait until we have space to put a new picture */ + SDL_LockMutex(is->pictq_mutex); + + if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh) + is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR)); + + while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && + !is->videoq.abort_request) { + SDL_CondWait(is->pictq_cond, is->pictq_mutex); + } + SDL_UnlockMutex(is->pictq_mutex); + + if (is->videoq.abort_request) + return -1; + + vp = &is->pictq[is->pictq_windex]; + + /* alloc or resize hardware picture buffer */ + if (!vp->bmp || +#if CONFIG_AVFILTER + vp->width != is->out_video_filter->inputs[0]->w || + vp->height != is->out_video_filter->inputs[0]->h) { +#else + vp->width != is->video_st->codec->width || + vp->height != is->video_st->codec->height) { +#endif + SDL_Event event; + + vp->allocated = 0; + + /* the allocation must be done in the main thread to avoid + locking problems */ + event.type = FF_ALLOC_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + + /* wait until the picture is allocated */ + SDL_LockMutex(is->pictq_mutex); + while (!vp->allocated && !is->videoq.abort_request) { + SDL_CondWait(is->pictq_cond, is->pictq_mutex); + } + SDL_UnlockMutex(is->pictq_mutex); + + if (is->videoq.abort_request) + return -1; + } + + /* if the frame is not skipped, then display it */ + if (vp->bmp) { + AVPicture pict; +#if CONFIG_AVFILTER + if(vp->picref) + avfilter_unref_buffer(vp->picref); + vp->picref = src_frame->opaque; +#endif + + /* get a pointer on the bitmap */ + SDL_LockYUVOverlay (vp->bmp); + + memset(&pict,0,sizeof(AVPicture)); + pict.data[0] = vp->bmp->pixels[0]; + pict.data[1] = vp->bmp->pixels[2]; + pict.data[2] = vp->bmp->pixels[1]; + + pict.linesize[0] = vp->bmp->pitches[0]; + pict.linesize[1] = vp->bmp->pitches[2]; + pict.linesize[2] = vp->bmp->pitches[1]; + +#if CONFIG_AVFILTER + pict_src.data[0] = src_frame->data[0]; + pict_src.data[1] = src_frame->data[1]; + pict_src.data[2] = src_frame->data[2]; + + pict_src.linesize[0] = src_frame->linesize[0]; + pict_src.linesize[1] = src_frame->linesize[1]; + pict_src.linesize[2] = src_frame->linesize[2]; + + //FIXME use direct rendering + av_picture_copy(&pict, &pict_src, + vp->pix_fmt, vp->width, vp->height); +#else + sws_flags = av_get_int(sws_opts, "sws_flags", NULL); + is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, + vp->width, vp->height, vp->pix_fmt, vp->width, vp->height, + dst_pix_fmt, sws_flags, NULL, NULL, NULL); + if (is->img_convert_ctx == NULL) { + fprintf(stderr, "Cannot initialize the conversion context\n"); + exit(1); + } + sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, + 0, vp->height, pict.data, pict.linesize); +#endif + /* update the bitmap content */ + SDL_UnlockYUVOverlay(vp->bmp); + + vp->pts = pts; + vp->pos = pos; + + /* now we can update the picture count */ + if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) + is->pictq_windex = 0; + SDL_LockMutex(is->pictq_mutex); + vp->target_clock= compute_target_time(vp->pts, is); + + is->pictq_size++; + SDL_UnlockMutex(is->pictq_mutex); + } + return 0; +} + +/** + * compute the exact PTS for the picture if it is omitted in the stream + * @param pts1 the dts of the pkt / pts of the frame + */ +static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos) +{ + double frame_delay, pts; + + pts = pts1; + + if (pts != 0) { + /* update video clock with pts, if present */ + is->video_clock = pts; + } else { + pts = is->video_clock; + } + /* update video clock for next frame */ + frame_delay = av_q2d(is->video_st->codec->time_base); + /* for MPEG2, the frame can be repeated, so we update the + clock accordingly */ + frame_delay += src_frame->repeat_pict * (frame_delay * 0.5); + is->video_clock += frame_delay; + + return queue_picture(is, src_frame, pts, pos); +} + +static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt) +{ + int got_picture, i; + + if (packet_queue_get(&is->videoq, pkt, 1) < 0) + return -1; + + if (pkt->data == flush_pkt.data) { + avcodec_flush_buffers(is->video_st->codec); + + SDL_LockMutex(is->pictq_mutex); + //Make sure there are no long delay timers (ideally we should just flush the que but thats harder) + for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { + is->pictq[i].target_clock= 0; + } + while (is->pictq_size && !is->videoq.abort_request) { + SDL_CondWait(is->pictq_cond, is->pictq_mutex); + } + is->video_current_pos = -1; + SDL_UnlockMutex(is->pictq_mutex); + + init_pts_correction(&is->pts_ctx); + is->frame_last_pts = AV_NOPTS_VALUE; + is->frame_last_delay = 0; + is->frame_timer = (double)av_gettime() / 1000000.0; + is->skip_frames = 1; + is->skip_frames_index = 0; + return 0; + } + + avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt); + + if (got_picture) { + if (decoder_reorder_pts == -1) { + *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts); + } else if (decoder_reorder_pts) { + *pts = frame->pkt_pts; + } else { + *pts = frame->pkt_dts; + } + + if (*pts == AV_NOPTS_VALUE) { + *pts = 0; + } + + is->skip_frames_index += 1; + if(is->skip_frames_index >= is->skip_frames){ + is->skip_frames_index -= FFMAX(is->skip_frames, 1.0); + return 1; + } + + } + return 0; +} + +#if CONFIG_AVFILTER +typedef struct { + VideoState *is; + AVFrame *frame; + int use_dr1; +} FilterPriv; + +static int input_get_buffer(AVCodecContext *codec, AVFrame *pic) +{ + AVFilterContext *ctx = codec->opaque; + AVFilterBufferRef *ref; + int perms = AV_PERM_WRITE; + int i, w, h, stride[4]; + unsigned edge; + int pixel_size; + + if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES) + perms |= AV_PERM_NEG_LINESIZES; + + if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) { + if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ; + if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE; + if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2; + } + if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE; + + w = codec->width; + h = codec->height; + avcodec_align_dimensions2(codec, &w, &h, stride); + edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width(); + w += edge << 1; + h += edge << 1; + + if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h))) + return -1; + + pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1; + ref->video->w = codec->width; + ref->video->h = codec->height; + for(i = 0; i < 4; i ++) { + unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0; + unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0; + + if (ref->data[i]) { + ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift); + } + pic->data[i] = ref->data[i]; + pic->linesize[i] = ref->linesize[i]; + } + pic->opaque = ref; + pic->age = INT_MAX; + pic->type = FF_BUFFER_TYPE_USER; + pic->reordered_opaque = codec->reordered_opaque; + if(codec->pkt) pic->pkt_pts = codec->pkt->pts; + else pic->pkt_pts = AV_NOPTS_VALUE; + return 0; +} + +static void input_release_buffer(AVCodecContext *codec, AVFrame *pic) +{ + memset(pic->data, 0, sizeof(pic->data)); + avfilter_unref_buffer(pic->opaque); +} + +static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic) +{ + AVFilterBufferRef *ref = pic->opaque; + + if (pic->data[0] == NULL) { + pic->buffer_hints |= FF_BUFFER_HINTS_READABLE; + return codec->get_buffer(codec, pic); + } + + if ((codec->width != ref->video->w) || (codec->height != ref->video->h) || + (codec->pix_fmt != ref->format)) { + av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n"); + return -1; + } + + pic->reordered_opaque = codec->reordered_opaque; + if(codec->pkt) pic->pkt_pts = codec->pkt->pts; + else pic->pkt_pts = AV_NOPTS_VALUE; + return 0; +} + +static int input_init(AVFilterContext *ctx, const char *args, void *opaque) +{ + FilterPriv *priv = ctx->priv; + AVCodecContext *codec; + if(!opaque) return -1; + + priv->is = opaque; + codec = priv->is->video_st->codec; + codec->opaque = ctx; + if(codec->codec->capabilities & CODEC_CAP_DR1) { + priv->use_dr1 = 1; + codec->get_buffer = input_get_buffer; + codec->release_buffer = input_release_buffer; + codec->reget_buffer = input_reget_buffer; + codec->thread_safe_callbacks = 1; + } + + priv->frame = avcodec_alloc_frame(); + + return 0; +} + +static void input_uninit(AVFilterContext *ctx) +{ + FilterPriv *priv = ctx->priv; + av_free(priv->frame); +} + +static int input_request_frame(AVFilterLink *link) +{ + FilterPriv *priv = link->src->priv; + AVFilterBufferRef *picref; + int64_t pts = 0; + AVPacket pkt; + int ret; + + while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt))) + av_free_packet(&pkt); + if (ret < 0) + return -1; + + if(priv->use_dr1) { + picref = avfilter_ref_buffer(priv->frame->opaque, ~0); + } else { + picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h); + av_image_copy(picref->data, picref->linesize, + priv->frame->data, priv->frame->linesize, + picref->format, link->w, link->h); + } + av_free_packet(&pkt); + + picref->pts = pts; + picref->pos = pkt.pos; + picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio; + avfilter_start_frame(link, picref); + avfilter_draw_slice(link, 0, link->h, 1); + avfilter_end_frame(link); + + return 0; +} + +static int input_query_formats(AVFilterContext *ctx) +{ + FilterPriv *priv = ctx->priv; + enum PixelFormat pix_fmts[] = { + priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE + }; + + avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); + return 0; +} + +static int input_config_props(AVFilterLink *link) +{ + FilterPriv *priv = link->src->priv; + AVCodecContext *c = priv->is->video_st->codec; + + link->w = c->width; + link->h = c->height; + link->time_base = priv->is->video_st->time_base; + + return 0; +} + +static AVFilter input_filter = +{ + .name = "avplay_input", + + .priv_size = sizeof(FilterPriv), + + .init = input_init, + .uninit = input_uninit, + + .query_formats = input_query_formats, + + .inputs = (AVFilterPad[]) {{ .name = NULL }}, + .outputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .request_frame = input_request_frame, + .config_props = input_config_props, }, + { .name = NULL }}, +}; + +static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters) +{ + char sws_flags_str[128]; + int ret; + FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P }; + AVFilterContext *filt_src = NULL, *filt_out = NULL; + snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags); + graph->scale_sws_opts = av_strdup(sws_flags_str); + + if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src", + NULL, is, graph)) < 0) + return ret; + if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out", + NULL, &ffsink_ctx, graph)) < 0) + return ret; + + if(vfilters) { + AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut)); + AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut)); + + outputs->name = av_strdup("in"); + outputs->filter_ctx = filt_src; + outputs->pad_idx = 0; + outputs->next = NULL; + + inputs->name = av_strdup("out"); + inputs->filter_ctx = filt_out; + inputs->pad_idx = 0; + inputs->next = NULL; + + if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0) + return ret; + av_freep(&vfilters); + } else { + if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0) + return ret; + } + + if ((ret = avfilter_graph_config(graph, NULL)) < 0) + return ret; + + is->out_video_filter = filt_out; + + return ret; +} + +#endif /* CONFIG_AVFILTER */ + +static int video_thread(void *arg) +{ + VideoState *is = arg; + AVFrame *frame= avcodec_alloc_frame(); + int64_t pts_int; + double pts; + int ret; + +#if CONFIG_AVFILTER + AVFilterGraph *graph = avfilter_graph_alloc(); + AVFilterContext *filt_out = NULL; + int64_t pos; + + if ((ret = configure_video_filters(graph, is, vfilters)) < 0) + goto the_end; + filt_out = is->out_video_filter; +#endif + + for(;;) { +#if !CONFIG_AVFILTER + AVPacket pkt; +#else + AVFilterBufferRef *picref; + AVRational tb; +#endif + while (is->paused && !is->videoq.abort_request) + SDL_Delay(10); +#if CONFIG_AVFILTER + ret = get_filtered_video_frame(filt_out, frame, &picref, &tb); + if (picref) { + pts_int = picref->pts; + pos = picref->pos; + frame->opaque = picref; + } + + if (av_cmp_q(tb, is->video_st->time_base)) { + av_unused int64_t pts1 = pts_int; + pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base); + av_dlog(NULL, "video_thread(): " + "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", + tb.num, tb.den, pts1, + is->video_st->time_base.num, is->video_st->time_base.den, pts_int); + } +#else + ret = get_video_frame(is, frame, &pts_int, &pkt); +#endif + + if (ret < 0) goto the_end; + + if (!ret) + continue; + + pts = pts_int*av_q2d(is->video_st->time_base); + +#if CONFIG_AVFILTER + ret = output_picture2(is, frame, pts, pos); +#else + ret = output_picture2(is, frame, pts, pkt.pos); + av_free_packet(&pkt); +#endif + if (ret < 0) + goto the_end; + + if (step) + if (cur_stream) + stream_pause(cur_stream); + } + the_end: +#if CONFIG_AVFILTER + avfilter_graph_free(&graph); +#endif + av_free(frame); + return 0; +} + +static int subtitle_thread(void *arg) +{ + VideoState *is = arg; + SubPicture *sp; + AVPacket pkt1, *pkt = &pkt1; + int got_subtitle; + double pts; + int i, j; + int r, g, b, y, u, v, a; + + for(;;) { + while (is->paused && !is->subtitleq.abort_request) { + SDL_Delay(10); + } + if (packet_queue_get(&is->subtitleq, pkt, 1) < 0) + break; + + if(pkt->data == flush_pkt.data){ + avcodec_flush_buffers(is->subtitle_st->codec); + continue; + } + SDL_LockMutex(is->subpq_mutex); + while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && + !is->subtitleq.abort_request) { + SDL_CondWait(is->subpq_cond, is->subpq_mutex); + } + SDL_UnlockMutex(is->subpq_mutex); + + if (is->subtitleq.abort_request) + return 0; + + sp = &is->subpq[is->subpq_windex]; + + /* NOTE: ipts is the PTS of the _first_ picture beginning in + this packet, if any */ + pts = 0; + if (pkt->pts != AV_NOPTS_VALUE) + pts = av_q2d(is->subtitle_st->time_base)*pkt->pts; + + avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub, + &got_subtitle, pkt); + + if (got_subtitle && sp->sub.format == 0) { + sp->pts = pts; + + for (i = 0; i < sp->sub.num_rects; i++) + { + for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) + { + RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); + y = RGB_TO_Y_CCIR(r, g, b); + u = RGB_TO_U_CCIR(r, g, b, 0); + v = RGB_TO_V_CCIR(r, g, b, 0); + YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); + } + } + + /* now we can update the picture count */ + if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) + is->subpq_windex = 0; + SDL_LockMutex(is->subpq_mutex); + is->subpq_size++; + SDL_UnlockMutex(is->subpq_mutex); + } + av_free_packet(pkt); + } + return 0; +} + +/* copy samples for viewing in editor window */ +static void update_sample_display(VideoState *is, short *samples, int samples_size) +{ + int size, len; + + size = samples_size / sizeof(short); + while (size > 0) { + len = SAMPLE_ARRAY_SIZE - is->sample_array_index; + if (len > size) + len = size; + memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); + samples += len; + is->sample_array_index += len; + if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) + is->sample_array_index = 0; + size -= len; + } +} + +/* return the new audio buffer size (samples can be added or deleted + to get better sync if video or external master clock) */ +static int synchronize_audio(VideoState *is, short *samples, + int samples_size1, double pts) +{ + int n, samples_size; + double ref_clock; + + n = 2 * is->audio_st->codec->channels; + samples_size = samples_size1; + + /* if not master, then we try to remove or add samples to correct the clock */ + if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) || + is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { + double diff, avg_diff; + int wanted_size, min_size, max_size, nb_samples; + + ref_clock = get_master_clock(is); + diff = get_audio_clock(is) - ref_clock; + + if (diff < AV_NOSYNC_THRESHOLD) { + is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; + if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { + /* not enough measures to have a correct estimate */ + is->audio_diff_avg_count++; + } else { + /* estimate the A-V difference */ + avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); + + if (fabs(avg_diff) >= is->audio_diff_threshold) { + wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n); + nb_samples = samples_size / n; + + min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; + max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; + if (wanted_size < min_size) + wanted_size = min_size; + else if (wanted_size > max_size) + wanted_size = max_size; + + /* add or remove samples to correction the synchro */ + if (wanted_size < samples_size) { + /* remove samples */ + samples_size = wanted_size; + } else if (wanted_size > samples_size) { + uint8_t *samples_end, *q; + int nb; + + /* add samples */ + nb = (samples_size - wanted_size); + samples_end = (uint8_t *)samples + samples_size - n; + q = samples_end + n; + while (nb > 0) { + memcpy(q, samples_end, n); + q += n; + nb -= n; + } + samples_size = wanted_size; + } + } + av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n", + diff, avg_diff, samples_size - samples_size1, + is->audio_clock, is->video_clock, is->audio_diff_threshold); + } + } else { + /* too big difference : may be initial PTS errors, so + reset A-V filter */ + is->audio_diff_avg_count = 0; + is->audio_diff_cum = 0; + } + } + + return samples_size; +} + +/* decode one audio frame and returns its uncompressed size */ +static int audio_decode_frame(VideoState *is, double *pts_ptr) +{ + AVPacket *pkt_temp = &is->audio_pkt_temp; + AVPacket *pkt = &is->audio_pkt; + AVCodecContext *dec= is->audio_st->codec; + int n, len1, data_size; + double pts; + + for(;;) { + /* NOTE: the audio packet can contain several frames */ + while (pkt_temp->size > 0) { + data_size = sizeof(is->audio_buf1); + len1 = avcodec_decode_audio3(dec, + (int16_t *)is->audio_buf1, &data_size, + pkt_temp); + if (len1 < 0) { + /* if error, we skip the frame */ + pkt_temp->size = 0; + break; + } + + pkt_temp->data += len1; + pkt_temp->size -= len1; + if (data_size <= 0) + continue; + + if (dec->sample_fmt != is->audio_src_fmt) { + if (is->reformat_ctx) + av_audio_convert_free(is->reformat_ctx); + is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1, + dec->sample_fmt, 1, NULL, 0); + if (!is->reformat_ctx) { + fprintf(stderr, "Cannot convert %s sample format to %s sample format\n", + av_get_sample_fmt_name(dec->sample_fmt), + av_get_sample_fmt_name(AV_SAMPLE_FMT_S16)); + break; + } + is->audio_src_fmt= dec->sample_fmt; + } + + if (is->reformat_ctx) { + const void *ibuf[6]= {is->audio_buf1}; + void *obuf[6]= {is->audio_buf2}; + int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)}; + int ostride[6]= {2}; + int len= data_size/istride[0]; + if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) { + printf("av_audio_convert() failed\n"); + break; + } + is->audio_buf= is->audio_buf2; + /* FIXME: existing code assume that data_size equals framesize*channels*2 + remove this legacy cruft */ + data_size= len*2; + }else{ + is->audio_buf= is->audio_buf1; + } + + /* if no pts, then compute it */ + pts = is->audio_clock; + *pts_ptr = pts; + n = 2 * dec->channels; + is->audio_clock += (double)data_size / + (double)(n * dec->sample_rate); +#ifdef DEBUG + { + static double last_clock; + printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n", + is->audio_clock - last_clock, + is->audio_clock, pts); + last_clock = is->audio_clock; + } +#endif + return data_size; + } + + /* free the current packet */ + if (pkt->data) + av_free_packet(pkt); + + if (is->paused || is->audioq.abort_request) { + return -1; + } + + /* read next packet */ + if (packet_queue_get(&is->audioq, pkt, 1) < 0) + return -1; + if(pkt->data == flush_pkt.data){ + avcodec_flush_buffers(dec); + continue; + } + + pkt_temp->data = pkt->data; + pkt_temp->size = pkt->size; + + /* if update the audio clock with the pts */ + if (pkt->pts != AV_NOPTS_VALUE) { + is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts; + } + } +} + +/* prepare a new audio buffer */ +static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) +{ + VideoState *is = opaque; + int audio_size, len1; + double pts; + + audio_callback_time = av_gettime(); + + while (len > 0) { + if (is->audio_buf_index >= is->audio_buf_size) { + audio_size = audio_decode_frame(is, &pts); + if (audio_size < 0) { + /* if error, just output silence */ + is->audio_buf = is->audio_buf1; + is->audio_buf_size = 1024; + memset(is->audio_buf, 0, is->audio_buf_size); + } else { + if (is->show_audio) + update_sample_display(is, (int16_t *)is->audio_buf, audio_size); + audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, + pts); + is->audio_buf_size = audio_size; + } + is->audio_buf_index = 0; + } + len1 = is->audio_buf_size - is->audio_buf_index; + if (len1 > len) + len1 = len; + memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); + len -= len1; + stream += len1; + is->audio_buf_index += len1; + } +} + +/* open a given stream. Return 0 if OK */ +static int stream_component_open(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecContext *avctx; + AVCodec *codec; + SDL_AudioSpec wanted_spec, spec; + AVDictionary *opts; + AVDictionaryEntry *t = NULL; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return -1; + avctx = ic->streams[stream_index]->codec; + + opts = filter_codec_opts(codec_opts, avctx->codec_id, 0); + + /* prepare audio output */ + if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { + if (avctx->channels > 0) { + avctx->request_channels = FFMIN(2, avctx->channels); + } else { + avctx->request_channels = 2; + } + } + + codec = avcodec_find_decoder(avctx->codec_id); + avctx->debug_mv = debug_mv; + avctx->debug = debug; + avctx->workaround_bugs = workaround_bugs; + avctx->lowres = lowres; + if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; + avctx->idct_algo= idct; + if(fast) avctx->flags2 |= CODEC_FLAG2_FAST; + avctx->skip_frame= skip_frame; + avctx->skip_idct= skip_idct; + avctx->skip_loop_filter= skip_loop_filter; + avctx->error_recognition= error_recognition; + avctx->error_concealment= error_concealment; + avctx->thread_count= thread_count; + + if (!codec || + avcodec_open2(avctx, codec, &opts) < 0) + return -1; + if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + return AVERROR_OPTION_NOT_FOUND; + } + + /* prepare audio output */ + if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { + wanted_spec.freq = avctx->sample_rate; + wanted_spec.format = AUDIO_S16SYS; + wanted_spec.channels = avctx->channels; + wanted_spec.silence = 0; + wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; + wanted_spec.callback = sdl_audio_callback; + wanted_spec.userdata = is; + if (SDL_OpenAudio(&wanted_spec, &spec) < 0) { + fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError()); + return -1; + } + is->audio_hw_buf_size = spec.size; + is->audio_src_fmt= AV_SAMPLE_FMT_S16; + } + + ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; + switch(avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + is->audio_stream = stream_index; + is->audio_st = ic->streams[stream_index]; + is->audio_buf_size = 0; + is->audio_buf_index = 0; + + /* init averaging filter */ + is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); + is->audio_diff_avg_count = 0; + /* since we do not have a precise anough audio fifo fullness, + we correct audio sync only if larger than this threshold */ + is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate; + + memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); + packet_queue_init(&is->audioq); + SDL_PauseAudio(0); + break; + case AVMEDIA_TYPE_VIDEO: + is->video_stream = stream_index; + is->video_st = ic->streams[stream_index]; + + packet_queue_init(&is->videoq); + is->video_tid = SDL_CreateThread(video_thread, is); + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_stream = stream_index; + is->subtitle_st = ic->streams[stream_index]; + packet_queue_init(&is->subtitleq); + + is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); + break; + default: + break; + } + return 0; +} + +static void stream_component_close(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecContext *avctx; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return; + avctx = ic->streams[stream_index]->codec; + + switch(avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + packet_queue_abort(&is->audioq); + + SDL_CloseAudio(); + + packet_queue_end(&is->audioq); + if (is->reformat_ctx) + av_audio_convert_free(is->reformat_ctx); + is->reformat_ctx = NULL; + break; + case AVMEDIA_TYPE_VIDEO: + packet_queue_abort(&is->videoq); + + /* note: we also signal this mutex to make sure we deblock the + video thread in all cases */ + SDL_LockMutex(is->pictq_mutex); + SDL_CondSignal(is->pictq_cond); + SDL_UnlockMutex(is->pictq_mutex); + + SDL_WaitThread(is->video_tid, NULL); + + packet_queue_end(&is->videoq); + break; + case AVMEDIA_TYPE_SUBTITLE: + packet_queue_abort(&is->subtitleq); + + /* note: we also signal this mutex to make sure we deblock the + video thread in all cases */ + SDL_LockMutex(is->subpq_mutex); + is->subtitle_stream_changed = 1; + + SDL_CondSignal(is->subpq_cond); + SDL_UnlockMutex(is->subpq_mutex); + + SDL_WaitThread(is->subtitle_tid, NULL); + + packet_queue_end(&is->subtitleq); + break; + default: + break; + } + + ic->streams[stream_index]->discard = AVDISCARD_ALL; + avcodec_close(avctx); + switch(avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + is->audio_st = NULL; + is->audio_stream = -1; + break; + case AVMEDIA_TYPE_VIDEO: + is->video_st = NULL; + is->video_stream = -1; + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_st = NULL; + is->subtitle_stream = -1; + break; + default: + break; + } +} + +/* since we have only one decoding thread, we can use a global + variable instead of a thread local variable */ +static VideoState *global_video_state; + +static int decode_interrupt_cb(void) +{ + return (global_video_state && global_video_state->abort_request); +} + +/* this thread gets the stream from the disk or the network */ +static int decode_thread(void *arg) +{ + VideoState *is = arg; + AVFormatContext *ic = NULL; + int err, i, ret; + int st_index[AVMEDIA_TYPE_NB]; + AVPacket pkt1, *pkt = &pkt1; + int eof=0; + int pkt_in_play_range = 0; + AVDictionaryEntry *t; + AVDictionary **opts; + int orig_nb_streams; + + memset(st_index, -1, sizeof(st_index)); + is->video_stream = -1; + is->audio_stream = -1; + is->subtitle_stream = -1; + + global_video_state = is; + avio_set_interrupt_cb(decode_interrupt_cb); + + err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); + if (err < 0) { + print_error(is->filename, err); + ret = -1; + goto fail; + } + if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + ret = AVERROR_OPTION_NOT_FOUND; + goto fail; + } + is->ic = ic; + + if(genpts) + ic->flags |= AVFMT_FLAG_GENPTS; + + opts = setup_find_stream_info_opts(ic, codec_opts); + orig_nb_streams = ic->nb_streams; + + err = avformat_find_stream_info(ic, opts); + if (err < 0) { + fprintf(stderr, "%s: could not find codec parameters\n", is->filename); + ret = -1; + goto fail; + } + for (i = 0; i < orig_nb_streams; i++) + av_dict_free(&opts[i]); + av_freep(&opts); + + if(ic->pb) + ic->pb->eof_reached= 0; //FIXME hack, avplay maybe should not use url_feof() to test for the end + + if(seek_by_bytes<0) + seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT); + + /* if seeking requested, we execute it */ + if (start_time != AV_NOPTS_VALUE) { + int64_t timestamp; + + timestamp = start_time; + /* add the stream start time */ + if (ic->start_time != AV_NOPTS_VALUE) + timestamp += ic->start_time; + ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); + if (ret < 0) { + fprintf(stderr, "%s: could not seek to position %0.3f\n", + is->filename, (double)timestamp / AV_TIME_BASE); + } + } + + for (i = 0; i < ic->nb_streams; i++) + ic->streams[i]->discard = AVDISCARD_ALL; + if (!video_disable) + st_index[AVMEDIA_TYPE_VIDEO] = + av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, + wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); + if (!audio_disable) + st_index[AVMEDIA_TYPE_AUDIO] = + av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, + wanted_stream[AVMEDIA_TYPE_AUDIO], + st_index[AVMEDIA_TYPE_VIDEO], + NULL, 0); + if (!video_disable) + st_index[AVMEDIA_TYPE_SUBTITLE] = + av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, + wanted_stream[AVMEDIA_TYPE_SUBTITLE], + (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? + st_index[AVMEDIA_TYPE_AUDIO] : + st_index[AVMEDIA_TYPE_VIDEO]), + NULL, 0); + if (show_status) { + av_dump_format(ic, 0, is->filename, 0); + } + + /* open the streams */ + if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); + } + + ret=-1; + if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { + ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); + } + is->refresh_tid = SDL_CreateThread(refresh_thread, is); + if(ret<0) { + if (!display_disable) + is->show_audio = 2; + } + + if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); + } + + if (is->video_stream < 0 && is->audio_stream < 0) { + fprintf(stderr, "%s: could not open codecs\n", is->filename); + ret = -1; + goto fail; + } + + for(;;) { + if (is->abort_request) + break; + if (is->paused != is->last_paused) { + is->last_paused = is->paused; + if (is->paused) + is->read_pause_return= av_read_pause(ic); + else + av_read_play(ic); + } +#if CONFIG_RTSP_DEMUXER + if (is->paused && !strcmp(ic->iformat->name, "rtsp")) { + /* wait 10 ms to avoid trying to get another packet */ + /* XXX: horrible */ + SDL_Delay(10); + continue; + } +#endif + if (is->seek_req) { + int64_t seek_target= is->seek_pos; + int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; + int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; +//FIXME the +-2 is due to rounding being not done in the correct direction in generation +// of the seek_pos/seek_rel variables + + ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); + if (ret < 0) { + fprintf(stderr, "%s: error while seeking\n", is->ic->filename); + }else{ + if (is->audio_stream >= 0) { + packet_queue_flush(&is->audioq); + packet_queue_put(&is->audioq, &flush_pkt); + } + if (is->subtitle_stream >= 0) { + packet_queue_flush(&is->subtitleq); + packet_queue_put(&is->subtitleq, &flush_pkt); + } + if (is->video_stream >= 0) { + packet_queue_flush(&is->videoq); + packet_queue_put(&is->videoq, &flush_pkt); + } + } + is->seek_req = 0; + eof= 0; + } + + /* if the queue are full, no need to read more */ + if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE + || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0) + && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0) + && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) { + /* wait 10 ms */ + SDL_Delay(10); + continue; + } + if(eof) { + if(is->video_stream >= 0){ + av_init_packet(pkt); + pkt->data=NULL; + pkt->size=0; + pkt->stream_index= is->video_stream; + packet_queue_put(&is->videoq, pkt); + } + SDL_Delay(10); + if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){ + if(loop!=1 && (!loop || --loop)){ + stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); + }else if(autoexit){ + ret=AVERROR_EOF; + goto fail; + } + } + continue; + } + ret = av_read_frame(ic, pkt); + if (ret < 0) { + if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached)) + eof=1; + if (ic->pb && ic->pb->error) + break; + SDL_Delay(100); /* wait for user event */ + continue; + } + /* check if packet is in play range specified by user, then queue, otherwise discard */ + pkt_in_play_range = duration == AV_NOPTS_VALUE || + (pkt->pts - ic->streams[pkt->stream_index]->start_time) * + av_q2d(ic->streams[pkt->stream_index]->time_base) - + (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000 + <= ((double)duration/1000000); + if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { + packet_queue_put(&is->audioq, pkt); + } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) { + packet_queue_put(&is->videoq, pkt); + } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { + packet_queue_put(&is->subtitleq, pkt); + } else { + av_free_packet(pkt); + } + } + /* wait until the end */ + while (!is->abort_request) { + SDL_Delay(100); + } + + ret = 0; + fail: + /* disable interrupting */ + global_video_state = NULL; + + /* close each stream */ + if (is->audio_stream >= 0) + stream_component_close(is, is->audio_stream); + if (is->video_stream >= 0) + stream_component_close(is, is->video_stream); + if (is->subtitle_stream >= 0) + stream_component_close(is, is->subtitle_stream); + if (is->ic) { + av_close_input_file(is->ic); + is->ic = NULL; /* safety */ + } + avio_set_interrupt_cb(NULL); + + if (ret != 0) { + SDL_Event event; + + event.type = FF_QUIT_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + } + return 0; +} + +static VideoState *stream_open(const char *filename, AVInputFormat *iformat) +{ + VideoState *is; + + is = av_mallocz(sizeof(VideoState)); + if (!is) + return NULL; + av_strlcpy(is->filename, filename, sizeof(is->filename)); + is->iformat = iformat; + is->ytop = 0; + is->xleft = 0; + + /* start video display */ + is->pictq_mutex = SDL_CreateMutex(); + is->pictq_cond = SDL_CreateCond(); + + is->subpq_mutex = SDL_CreateMutex(); + is->subpq_cond = SDL_CreateCond(); + + is->av_sync_type = av_sync_type; + is->parse_tid = SDL_CreateThread(decode_thread, is); + if (!is->parse_tid) { + av_free(is); + return NULL; + } + return is; +} + +static void stream_cycle_channel(VideoState *is, int codec_type) +{ + AVFormatContext *ic = is->ic; + int start_index, stream_index; + AVStream *st; + + if (codec_type == AVMEDIA_TYPE_VIDEO) + start_index = is->video_stream; + else if (codec_type == AVMEDIA_TYPE_AUDIO) + start_index = is->audio_stream; + else + start_index = is->subtitle_stream; + if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0)) + return; + stream_index = start_index; + for(;;) { + if (++stream_index >= is->ic->nb_streams) + { + if (codec_type == AVMEDIA_TYPE_SUBTITLE) + { + stream_index = -1; + goto the_end; + } else + stream_index = 0; + } + if (stream_index == start_index) + return; + st = ic->streams[stream_index]; + if (st->codec->codec_type == codec_type) { + /* check that parameters are OK */ + switch(codec_type) { + case AVMEDIA_TYPE_AUDIO: + if (st->codec->sample_rate != 0 && + st->codec->channels != 0) + goto the_end; + break; + case AVMEDIA_TYPE_VIDEO: + case AVMEDIA_TYPE_SUBTITLE: + goto the_end; + default: + break; + } + } + } + the_end: + stream_component_close(is, start_index); + stream_component_open(is, stream_index); +} + + +static void toggle_full_screen(void) +{ + is_full_screen = !is_full_screen; + video_open(cur_stream); +} + +static void toggle_pause(void) +{ + if (cur_stream) + stream_pause(cur_stream); + step = 0; +} + +static void step_to_next_frame(void) +{ + if (cur_stream) { + /* if the stream is paused unpause it, then step */ + if (cur_stream->paused) + stream_pause(cur_stream); + } + step = 1; +} + +static void toggle_audio_display(void) +{ + if (cur_stream) { + int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); + cur_stream->show_audio = (cur_stream->show_audio + 1) % 3; + fill_rectangle(screen, + cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height, + bgcolor); + SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height); + } +} + +/* handle an event sent by the GUI */ +static void event_loop(void) +{ + SDL_Event event; + double incr, pos, frac; + + for(;;) { + double x; + SDL_WaitEvent(&event); + switch(event.type) { + case SDL_KEYDOWN: + if (exit_on_keydown) { + do_exit(); + break; + } + switch(event.key.keysym.sym) { + case SDLK_ESCAPE: + case SDLK_q: + do_exit(); + break; + case SDLK_f: + toggle_full_screen(); + break; + case SDLK_p: + case SDLK_SPACE: + toggle_pause(); + break; + case SDLK_s: //S: Step to next frame + step_to_next_frame(); + break; + case SDLK_a: + if (cur_stream) + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); + break; + case SDLK_v: + if (cur_stream) + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); + break; + case SDLK_t: + if (cur_stream) + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); + break; + case SDLK_w: + toggle_audio_display(); + break; + case SDLK_LEFT: + incr = -10.0; + goto do_seek; + case SDLK_RIGHT: + incr = 10.0; + goto do_seek; + case SDLK_UP: + incr = 60.0; + goto do_seek; + case SDLK_DOWN: + incr = -60.0; + do_seek: + if (cur_stream) { + if (seek_by_bytes) { + if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){ + pos= cur_stream->video_current_pos; + }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){ + pos= cur_stream->audio_pkt.pos; + }else + pos = avio_tell(cur_stream->ic->pb); + if (cur_stream->ic->bit_rate) + incr *= cur_stream->ic->bit_rate / 8.0; + else + incr *= 180000.0; + pos += incr; + stream_seek(cur_stream, pos, incr, 1); + } else { + pos = get_master_clock(cur_stream); + pos += incr; + stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); + } + } + break; + default: + break; + } + break; + case SDL_MOUSEBUTTONDOWN: + if (exit_on_mousedown) { + do_exit(); + break; + } + case SDL_MOUSEMOTION: + if(event.type ==SDL_MOUSEBUTTONDOWN){ + x= event.button.x; + }else{ + if(event.motion.state != SDL_PRESSED) + break; + x= event.motion.x; + } + if (cur_stream) { + if(seek_by_bytes || cur_stream->ic->duration<=0){ + uint64_t size= avio_size(cur_stream->ic->pb); + stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); + }else{ + int64_t ts; + int ns, hh, mm, ss; + int tns, thh, tmm, tss; + tns = cur_stream->ic->duration/1000000LL; + thh = tns/3600; + tmm = (tns%3600)/60; + tss = (tns%60); + frac = x/cur_stream->width; + ns = frac*tns; + hh = ns/3600; + mm = (ns%3600)/60; + ss = (ns%60); + fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, + hh, mm, ss, thh, tmm, tss); + ts = frac*cur_stream->ic->duration; + if (cur_stream->ic->start_time != AV_NOPTS_VALUE) + ts += cur_stream->ic->start_time; + stream_seek(cur_stream, ts, 0, 0); + } + } + break; + case SDL_VIDEORESIZE: + if (cur_stream) { + screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, + SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); + screen_width = cur_stream->width = event.resize.w; + screen_height= cur_stream->height= event.resize.h; + } + break; + case SDL_QUIT: + case FF_QUIT_EVENT: + do_exit(); + break; + case FF_ALLOC_EVENT: + video_open(event.user.data1); + alloc_picture(event.user.data1); + break; + case FF_REFRESH_EVENT: + video_refresh_timer(event.user.data1); + cur_stream->refresh=0; + break; + default: + break; + } + } +} + +static int opt_frame_size(const char *opt, const char *arg) +{ + av_log(NULL, AV_LOG_ERROR, + "Option '%s' has been removed, use private format options instead\n", opt); + return AVERROR(EINVAL); +} + +static int opt_width(const char *opt, const char *arg) +{ + screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); + return 0; +} + +static int opt_height(const char *opt, const char *arg) +{ + screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); + return 0; +} + +static int opt_format(const char *opt, const char *arg) +{ + file_iformat = av_find_input_format(arg); + if (!file_iformat) { + fprintf(stderr, "Unknown input format: %s\n", arg); + return AVERROR(EINVAL); + } + return 0; +} + +static int opt_frame_pix_fmt(const char *opt, const char *arg) +{ + av_log(NULL, AV_LOG_ERROR, + "Option '%s' has been removed, use private format options instead\n", opt); + return AVERROR(EINVAL); +} + +static int opt_sync(const char *opt, const char *arg) +{ + if (!strcmp(arg, "audio")) + av_sync_type = AV_SYNC_AUDIO_MASTER; + else if (!strcmp(arg, "video")) + av_sync_type = AV_SYNC_VIDEO_MASTER; + else if (!strcmp(arg, "ext")) + av_sync_type = AV_SYNC_EXTERNAL_CLOCK; + else { + fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); + exit(1); + } + return 0; +} + +static int opt_seek(const char *opt, const char *arg) +{ + start_time = parse_time_or_die(opt, arg, 1); + return 0; +} + +static int opt_duration(const char *opt, const char *arg) +{ + duration = parse_time_or_die(opt, arg, 1); + return 0; +} + +static int opt_debug(const char *opt, const char *arg) +{ + av_log_set_level(99); + debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); + return 0; +} + +static int opt_vismv(const char *opt, const char *arg) +{ + debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); + return 0; +} + +static int opt_thread_count(const char *opt, const char *arg) +{ + thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); +#if !HAVE_THREADS + fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n"); +#endif + return 0; +} + +static const OptionDef options[] = { +#include "cmdutils_common_opts.h" + { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" }, + { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" }, + { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, + { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" }, + { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" }, + { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" }, + { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" }, + { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" }, + { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" }, + { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" }, + { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" }, + { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" }, + { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" }, + { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, + { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" }, + { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" }, + { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" }, + { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" }, + { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" }, + { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" }, + { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" }, + { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""}, + { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" }, + { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" }, + { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" }, + { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" }, + { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" }, + { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" }, + { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" }, + { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" }, + { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" }, + { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" }, + { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" }, + { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" }, + { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" }, + { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" }, + { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" }, +#if CONFIG_AVFILTER + { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" }, +#endif + { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" }, + { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, + { "i", 0, {NULL}, "ffmpeg compatibility dummy option", ""}, + { NULL, }, +}; + +static void show_usage(void) +{ + printf("Simple media player\n"); + printf("usage: %s [options] input_file\n", program_name); + printf("\n"); +} + +static void show_help(void) +{ + av_log_set_callback(log_callback_help); + show_usage(); + show_help_options(options, "Main options:\n", + OPT_EXPERT, 0); + show_help_options(options, "\nAdvanced options:\n", + OPT_EXPERT, OPT_EXPERT); + printf("\n"); + av_opt_show2(avcodec_opts[0], NULL, + AV_OPT_FLAG_DECODING_PARAM, 0); + printf("\n"); + av_opt_show2(avformat_opts, NULL, + AV_OPT_FLAG_DECODING_PARAM, 0); +#if !CONFIG_AVFILTER + printf("\n"); + av_opt_show2(sws_opts, NULL, + AV_OPT_FLAG_ENCODING_PARAM, 0); +#endif + printf("\nWhile playing:\n" + "q, ESC quit\n" + "f toggle full screen\n" + "p, SPC pause\n" + "a cycle audio channel\n" + "v cycle video channel\n" + "t cycle subtitle channel\n" + "w show audio waves\n" + "s activate frame-step mode\n" + "left/right seek backward/forward 10 seconds\n" + "down/up seek backward/forward 1 minute\n" + "mouse click seek to percentage in file corresponding to fraction of width\n" + ); +} + +static void opt_input_file(const char *filename) +{ + if (input_filename) { + fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", + filename, input_filename); + exit(1); + } + if (!strcmp(filename, "-")) + filename = "pipe:"; + input_filename = filename; +} + +/* Called from the main */ +int main(int argc, char **argv) +{ + int flags; + + av_log_set_flags(AV_LOG_SKIP_REPEATED); + + /* register all codecs, demux and protocols */ + avcodec_register_all(); +#if CONFIG_AVDEVICE + avdevice_register_all(); +#endif +#if CONFIG_AVFILTER + avfilter_register_all(); +#endif + av_register_all(); + + init_opts(); + + show_banner(); + + parse_options(argc, argv, options, opt_input_file); + + if (!input_filename) { + show_usage(); + fprintf(stderr, "An input file must be specified\n"); + fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name); + exit(1); + } + + if (display_disable) { + video_disable = 1; + } + flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; +#if !defined(__MINGW32__) && !defined(__APPLE__) + flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ +#endif + if (SDL_Init (flags)) { + fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); + exit(1); + } + + if (!display_disable) { +#if HAVE_SDL_VIDEO_SIZE + const SDL_VideoInfo *vi = SDL_GetVideoInfo(); + fs_screen_width = vi->current_w; + fs_screen_height = vi->current_h; +#endif + } + + SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); + SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); + SDL_EventState(SDL_USEREVENT, SDL_IGNORE); + + av_init_packet(&flush_pkt); + flush_pkt.data= "FLUSH"; + + cur_stream = stream_open(input_filename, file_iformat); + + event_loop(); + + /* never returns */ + + return 0; +} |
