From 85f07f223de9fbeb2b9d66db11f89091ac717926 Mon Sep 17 00:00:00 2001 From: Fabrice Bellard Date: Sun, 22 Jul 2001 14:37:44 +0000 Subject: merge Originally committed as revision 6 to svn://svn.ffmpeg.org/ffmpeg/trunk --- ffmpeg.c | 2079 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2079 insertions(+) create mode 100644 ffmpeg.c (limited to 'ffmpeg.c') diff --git a/ffmpeg.c b/ffmpeg.c new file mode 100644 index 0000000..d5bc917 --- /dev/null +++ b/ffmpeg.c @@ -0,0 +1,2079 @@ +/* + * FFmpeg main + * Copyright (c) 2000,2001 Gerard Lantau + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "avformat.h" + +typedef struct { + const char *name; + int flags; +#define HAS_ARG 0x0001 +#define OPT_BOOL 0x0002 +#define OPT_EXPERT 0x0004 +#define OPT_STRING 0x0008 + union { + void (*func_arg)(); + int *int_arg; + char **str_arg; + } u; + const char *help; + const char *argname; +} OptionDef; + +/* select an input stream for an output stream */ +typedef struct AVStreamMap { + int file_index; + int stream_index; +} AVStreamMap; + +extern const OptionDef options[]; + +void show_help(void); + +#define MAX_FILES 20 + +static AVFormatContext *input_files[MAX_FILES]; +static int nb_input_files = 0; + +static AVFormatContext *output_files[MAX_FILES]; +static int nb_output_files = 0; + +static AVStreamMap stream_maps[MAX_FILES]; +static int nb_stream_maps; + +static AVFormat *file_format; +static int frame_width = 160; +static int frame_height = 128; +static int frame_rate = 25 * FRAME_RATE_BASE; +static int video_bit_rate = 200000; +static int video_qscale = 0; +static int video_disable = 0; +static int video_codec_id = CODEC_ID_NONE; +static int same_quality = 0; + +static int gop_size = 12; +static int intra_only = 0; +static int audio_sample_rate = 44100; +static int audio_bit_rate = 64000; +static int audio_disable = 0; +static int audio_channels = 1; +static int audio_codec_id = CODEC_ID_NONE; + +static INT64 recording_time = 0; +static int file_overwrite = 0; +static char *str_title = NULL; +static char *str_author = NULL; +static char *str_copyright = NULL; +static char *str_comment = NULL; + +typedef struct AVOutputStream { + int file_index; /* file index */ + int index; /* stream index in the output file */ + int source_index; /* AVInputStream index */ + AVStream *st; /* stream in the output file */ + int encoding_needed; /* true if encoding needed for this stream */ + + int fifo_packet_rptr; /* read index in the corresponding + avinputstream packet fifo */ + /* video only */ + AVPicture pict_tmp; /* temporary image for resizing */ + int video_resample; + ImgReSampleContext *img_resample_ctx; /* for image resampling */ + + /* audio only */ + int audio_resample; + ReSampleContext *resample; /* for audio resampling */ + FifoBuffer fifo; /* for compression: one audio fifo per codec */ +} AVOutputStream; + +typedef struct AVInputStream { + int file_index; + int index; + AVStream *st; + int discard; /* true if stream data should be discarded */ + int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */ + INT64 pts; /* current pts */ + int frame_number; /* current frame */ + INT64 sample_index; /* current sample */ +} AVInputStream; + +typedef struct AVInputFile { + int eof_reached; /* true if eof reached */ + int ist_index; /* index of first stream in ist_table */ + int buffer_size; /* current total buffer size */ + int buffer_size_max; /* buffer size at which we consider we can stop + buffering */ +} AVInputFile; + +/* init terminal so that we can grab keys */ +static struct termios oldtty; + +static void term_exit(void) +{ + tcsetattr (0, TCSANOW, &oldtty); +} + +static void term_init(void) +{ + struct termios tty; + + tcgetattr (0, &tty); + oldtty = tty; + + tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP + |INLCR|IGNCR|ICRNL|IXON); + tty.c_oflag |= OPOST; + tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); + tty.c_cflag &= ~(CSIZE|PARENB); + tty.c_cflag |= CS8; + tty.c_cc[VMIN] = 1; + tty.c_cc[VTIME] = 0; + + tcsetattr (0, TCSANOW, &tty); + + atexit(term_exit); +} + +/* read a key without blocking */ +static int read_key(void) +{ + struct timeval tv; + int n; + unsigned char ch; + fd_set rfds; + + FD_ZERO(&rfds); + FD_SET(0, &rfds); + tv.tv_sec = 0; + tv.tv_usec = 0; + n = select(1, &rfds, NULL, NULL, &tv); + if (n > 0) { + if (read(0, &ch, 1) == 1) + return ch; + } + return -1; +} + +#define AUDIO_FIFO_SIZE 8192 + +/* main loop for grabbing */ +int av_grab(AVFormatContext *s) +{ + UINT8 audio_buf[AUDIO_FIFO_SIZE/2]; + UINT8 audio_buf1[AUDIO_FIFO_SIZE/2]; + UINT8 audio_out[AUDIO_FIFO_SIZE/2]; + UINT8 video_buffer[128*1024]; + char buf[256]; + short *samples; + URLContext *audio_handle = NULL, *video_handle = NULL; + int ret; + AVCodecContext *enc, *first_video_enc = NULL; + int frame_size, frame_bytes; + int use_audio, use_video; + int frame_rate, sample_rate, channels; + int width, height, frame_number, i, pix_fmt = 0; + AVOutputStream *ost_table[s->nb_streams], *ost; + UINT8 *picture_in_buf = NULL, *picture_420p = NULL; + int audio_fifo_size = 0, picture_size = 0; + INT64 time_start; + + /* init output stream info */ + for(i=0;inb_streams;i++) + ost_table[i] = NULL; + + /* output stream init */ + for(i=0;inb_streams;i++) { + ost = av_mallocz(sizeof(AVOutputStream)); + if (!ost) + goto fail; + ost->index = i; + ost->st = s->streams[i]; + ost_table[i] = ost; + } + + use_audio = 0; + use_video = 0; + frame_rate = 0; + sample_rate = 0; + frame_size = 0; + channels = 1; + width = 0; + height = 0; + frame_number = 0; + + for(i=0;inb_streams;i++) { + AVCodec *codec; + + ost = ost_table[i]; + enc = &ost->st->codec; + codec = avcodec_find_encoder(enc->codec_id); + if (!codec) { + fprintf(stderr, "Unknown codec\n"); + return -1; + } + if (avcodec_open(enc, codec) < 0) { + fprintf(stderr, "Incorrect encode parameters\n"); + return -1; + } + switch(enc->codec_type) { + case CODEC_TYPE_AUDIO: + use_audio = 1; + if (enc->sample_rate > sample_rate) + sample_rate = enc->sample_rate; + if (enc->frame_size > frame_size) + frame_size = enc->frame_size; + if (enc->channels > channels) + channels = enc->channels; + break; + case CODEC_TYPE_VIDEO: + if (!first_video_enc) + first_video_enc = enc; + use_video = 1; + if (enc->frame_rate > frame_rate) + frame_rate = enc->frame_rate; + if (enc->width > width) + width = enc->width; + if (enc->height > height) + height = enc->height; + break; + } + } + + /* audio */ + samples = NULL; + if (use_audio) { + snprintf(buf, sizeof(buf), "audio:%d,%d", sample_rate, channels); + ret = url_open(&audio_handle, buf, URL_RDONLY); + if (ret < 0) { + fprintf(stderr, "Could not open audio device: disabling audio capture\n"); + use_audio = 0; + } else { + URLFormat f; + /* read back exact grab parameters */ + if (url_getformat(audio_handle, &f) < 0) { + fprintf(stderr, "could not read back video grab parameters\n"); + goto fail; + } + sample_rate = f.sample_rate; + channels = f.channels; + audio_fifo_size = ((AUDIO_FIFO_SIZE / 2) / audio_handle->packet_size) * + audio_handle->packet_size; + fprintf(stderr, "Audio sampling: %d Hz, %s\n", + sample_rate, channels == 2 ? "stereo" : "mono"); + } + } + + /* video */ + if (use_video) { + snprintf(buf, sizeof(buf), "video:%d,%d,%f", + width, height, (float)frame_rate / FRAME_RATE_BASE); + + ret = url_open(&video_handle, buf, URL_RDONLY); + if (ret < 0) { + fprintf(stderr,"Could not init video 4 linux capture: disabling video capture\n"); + use_video = 0; + } else { + URLFormat f; + const char *pix_fmt_str; + /* read back exact grab parameters */ + if (url_getformat(video_handle, &f) < 0) { + fprintf(stderr, "could not read back video grab parameters\n"); + goto fail; + } + width = f.width; + height = f.height; + pix_fmt = f.pix_fmt; + switch(pix_fmt) { + case PIX_FMT_YUV420P: + pix_fmt_str = "420P"; + break; + case PIX_FMT_YUV422: + pix_fmt_str = "422"; + break; + case PIX_FMT_RGB24: + pix_fmt_str = "RGB24"; + break; + case PIX_FMT_BGR24: + pix_fmt_str = "BGR24"; + break; + default: + pix_fmt_str = "???"; + break; + } + picture_size = video_handle->packet_size; + picture_in_buf = malloc(picture_size); + if (!picture_in_buf) + goto fail; + /* allocate a temporary picture if not grabbing in 420P format */ + if (pix_fmt != PIX_FMT_YUV420P) { + picture_420p = malloc((width * height * 3) / 2); + } + fprintf(stderr, "Video sampling: %dx%d, %s format, %0.2f fps\n", + width, height, pix_fmt_str, (float)frame_rate / FRAME_RATE_BASE); + } + } + + if (!use_video && !use_audio) { + fprintf(stderr,"Could not open grab devices : exiting\n"); + exit(1); + } + + /* init built in conversion functions */ + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + enc = &ost->st->codec; + switch(enc->codec_type) { + case CODEC_TYPE_AUDIO: + ost->audio_resample = 0; + if ((enc->channels != channels || + enc->sample_rate != sample_rate)) { + ost->audio_resample = 1; + ost->resample = audio_resample_init(enc->channels, channels, + enc->sample_rate, sample_rate); + } + if (fifo_init(&ost->fifo, (2 * audio_fifo_size * enc->sample_rate) / + sample_rate)) + goto fail; + break; + case CODEC_TYPE_VIDEO: + ost->video_resample = 0; + if (enc->width != width || + enc->height != height) { + UINT8 *buf; + ost->video_resample = 1; + buf = malloc((enc->width * enc->height * 3) / 2); + if (!buf) + goto fail; + ost->pict_tmp.data[0] = buf; + ost->pict_tmp.data[1] = buf + enc->width * height; + ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (enc->width * height) / 4; + ost->pict_tmp.linesize[0] = enc->width; + ost->pict_tmp.linesize[1] = enc->width / 2; + ost->pict_tmp.linesize[2] = enc->width / 2; + ost->img_resample_ctx = img_resample_init( + ost->st->codec.width, ost->st->codec.height, + width, height); + } + } + } + + fprintf(stderr, "Press [q] to stop encoding\n"); + + s->format->write_header(s); + time_start = gettime(); + term_init(); + + for(;;) { + /* if 'q' pressed, exits */ + if (read_key() == 'q') + break; + + /* read & compress audio frames */ + if (use_audio) { + int ret, nb_samples, nb_samples_out; + UINT8 *buftmp; + + for(;;) { + ret = url_read(audio_handle, audio_buf, audio_fifo_size); + if (ret <= 0) + break; + /* fill each codec fifo by doing the right sample + rate conversion. This is not optimal because we + do too much work, but it is easy to do */ + nb_samples = ret / (channels * 2); + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + enc = &ost->st->codec; + if (enc->codec_type == CODEC_TYPE_AUDIO) { + /* rate & stereo convertion */ + if (!ost->audio_resample) { + buftmp = audio_buf; + nb_samples_out = nb_samples; + } else { + buftmp = audio_buf1; + nb_samples_out = audio_resample(ost->resample, + (short *)buftmp, (short *)audio_buf, + nb_samples); + } + fifo_write(&ost->fifo, buftmp, nb_samples_out * enc->channels * 2, + &ost->fifo.wptr); + } + } + + /* compress as many frame as possible with each audio codec */ + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + enc = &ost->st->codec; + if (enc->codec_type == CODEC_TYPE_AUDIO) { + frame_bytes = enc->frame_size * 2 * enc->channels; + + while (fifo_read(&ost->fifo, audio_buf, + frame_bytes, &ost->fifo.rptr) == 0) { + ret = avcodec_encode_audio(enc, + audio_out, sizeof(audio_out), + (short *)audio_buf); + s->format->write_packet(s, ost->index, audio_out, ret); + } + } + } + } + } + + if (use_video) { + AVPicture *picture1; + AVPicture picture; + UINT8 *pict_buffer; + + ret = url_read(video_handle, picture_in_buf, picture_size); + if (ret < 0) + break; + if (pix_fmt != PIX_FMT_YUV420P) { + pict_buffer = picture_420p; + img_convert_to_yuv420(pict_buffer, picture_in_buf, pix_fmt, width, height); + } else { + pict_buffer = picture_in_buf; + } + /* build a picture storage */ + picture.data[0] = pict_buffer; + picture.data[1] = picture.data[0] + width * height; + picture.data[2] = picture.data[1] + (width * height) / 4; + picture.linesize[0] = width; + picture.linesize[1] = width / 2; + picture.linesize[2] = width / 2; + + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + enc = &ost->st->codec; + if (enc->codec_type == CODEC_TYPE_VIDEO) { + int n1, n2, nb; + + /* feed each codec with its requested frame rate */ + n1 = ((INT64)frame_number * enc->frame_rate) / frame_rate; + n2 = (((INT64)frame_number + 1) * enc->frame_rate) / frame_rate; + nb = n2 - n1; + if (nb > 0) { + /* resize the picture if needed */ + if (ost->video_resample) { + picture1 = &ost->pict_tmp; + img_resample(ost->img_resample_ctx, + picture1, &picture); + } else { + picture1 = &picture; + } + ret = avcodec_encode_video(enc, video_buffer, + sizeof(video_buffer), + picture1); + s->format->write_packet(s, ost->index, video_buffer, ret); + } + } + } + frame_number++; + } + + /* write report */ + { + char buf[1024]; + INT64 total_size; + float ti, bitrate; + static float last_ti; + INT64 ti1; + + total_size = url_ftell(&s->pb); + ti1 = gettime() - time_start; + /* check elapsed time */ + if (recording_time && ti1 >= recording_time) + break; + + ti = ti1 / 1000000.0; + if (ti < 0.1) + ti = 0.1; + /* dispaly twice per second */ + if ((ti - last_ti) >= 0.5) { + last_ti = ti; + bitrate = (int)((total_size * 8) / ti / 1000.0); + + buf[0] = '\0'; + if (use_video) { + sprintf(buf + strlen(buf), "frame=%5d fps=%4.1f q=%2d ", + frame_number, (float)frame_number / ti, first_video_enc->quality); + } + + sprintf(buf + strlen(buf), "size=%8LdkB time=%0.1f bitrate=%6.1fkbits/s", + total_size / 1024, ti, bitrate); + fprintf(stderr, "%s \r", buf); + fflush(stderr); + } + } + } + term_exit(); + + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + enc = &ost->st->codec; + avcodec_close(enc); + } + s->format->write_trailer(s); + + if (audio_handle) + url_close(audio_handle); + + if (video_handle) + url_close(video_handle); + + /* write report */ + { + float ti, bitrate; + INT64 total_size; + + total_size = url_ftell(&s->pb); + + ti = (gettime() - time_start) / 1000000.0; + if (ti < 0.1) + ti = 0.1; + bitrate = (int)((total_size * 8) / ti / 1000.0); + + fprintf(stderr, "\033[K\nTotal time = %0.1f s, %Ld KBytes, %0.1f kbits/s\n", + ti, total_size / 1024, bitrate); + if (use_video) { + fprintf(stderr, "Total frames = %d\n", frame_number); + } + } + + ret = 0; + fail1: + if (picture_in_buf) + free(picture_in_buf); + if (picture_420p) + free(picture_420p); + for(i=0;inb_streams;i++) { + ost = ost_table[i]; + if (ost) { + if (ost->fifo.buffer) + fifo_free(&ost->fifo); + if (ost->pict_tmp.data[0]) + free(ost->pict_tmp.data[0]); + if (ost->video_resample) + img_resample_close(ost->img_resample_ctx); + if (ost->audio_resample) + audio_resample_close(ost->resample); + free(ost); + } + } + return ret; + fail: + ret = -ENOMEM; + goto fail1; +} + +int read_ffserver_streams(AVFormatContext *s, const char *filename) +{ + int i; + AVFormatContext *ic; + + ic = av_open_input_file(filename, FFM_PACKET_SIZE); + if (!ic) + return -EIO; + /* copy stream format */ + s->nb_streams = ic->nb_streams; + for(i=0;inb_streams;i++) { + AVStream *st; + st = av_mallocz(sizeof(AVFormatContext)); + memcpy(st, ic->streams[i], sizeof(AVStream)); + s->streams[i] = st; + } + + av_close_input_file(ic); + return 0; +} + +#define MAX_AUDIO_PACKET_SIZE 16384 + +static void do_audio_out(AVFormatContext *s, + AVOutputStream *ost, + AVInputStream *ist, + unsigned char *buf, int size) +{ + UINT8 *buftmp; + UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */ + UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */ + int size_out, frame_bytes, ret; + AVCodecContext *enc; + + enc = &ost->st->codec; + + if (ost->audio_resample) { + buftmp = audio_buf; + size_out = audio_resample(ost->resample, + (short *)buftmp, (short *)buf, + size / (ist->st->codec.channels * 2)); + size_out = size_out * enc->channels * 2; + } else { + buftmp = buf; + size_out = size; + } + + /* now encode as many frames as possible */ + if (enc->codec_id != CODEC_ID_PCM) { + /* output resampled raw samples */ + fifo_write(&ost->fifo, buftmp, size_out, + &ost->fifo.wptr); + + frame_bytes = enc->frame_size * 2 * enc->channels; + + while (fifo_read(&ost->fifo, audio_buf, frame_bytes, + &ost->fifo.rptr) == 0) { + ret = avcodec_encode_audio(enc, + audio_out, sizeof(audio_out), (short *)audio_buf); + s->format->write_packet(s, ost->index, audio_out, ret); + } + } else { + /* XXX: handle endianness */ + s->format->write_packet(s, ost->index, buftmp, size_out); + } +} + +/* write a picture to a raw mux */ +static void write_picture(AVFormatContext *s, int index, AVPicture *picture, int w, int h) +{ + UINT8 *buf, *src, *dest; + int size, j, i; + /* XXX: not efficient, should add test if we can take + directly the AVPicture */ + size = (w * h) * 3 / 2; + buf = malloc(size); + dest = buf; + for(i=0;i<3;i++) { + if (i == 1) { + w >>= 1; + h >>= 1; + } + src = picture->data[i]; + for(j=0;jlinesize[i]; + } + } + s->format->write_packet(s, index, buf, size); + free(buf); +} + + +static void do_video_out(AVFormatContext *s, + AVOutputStream *ost, + AVInputStream *ist, + AVPicture *pict) +{ + int n1, n2, nb, i, ret, frame_number; + AVPicture *picture; + UINT8 video_buffer[128*1024]; + AVCodecContext *enc; + + enc = &ost->st->codec; + + frame_number = ist->frame_number; + /* first drop frame if needed */ + n1 = ((INT64)frame_number * enc->frame_rate) / ist->st->codec.frame_rate; + n2 = (((INT64)frame_number + 1) * enc->frame_rate) / ist->st->codec.frame_rate; + nb = n2 - n1; + if (nb <= 0) + return; + + if (ost->video_resample) { + picture = &ost->pict_tmp; + img_resample(ost->img_resample_ctx, picture, pict); + } else { + picture = pict; + } + + /* duplicates frame if needed */ + /* XXX: pb because no interleaving */ + for(i=0;icodec_id != CODEC_ID_RAWVIDEO) { + /* handles sameq here. This is not correct because it may + not be a global option */ + if (same_quality) { + ost->st->codec.quality = ist->st->codec.quality; + } + ret = avcodec_encode_video(&ost->st->codec, + video_buffer, sizeof(video_buffer), + picture); + s->format->write_packet(s, ost->index, video_buffer, ret); + } else { + write_picture(s, ost->index, picture, enc->width, enc->height); + } + } +} + +//#define HEX_DUMP + +#ifdef HEX_DUMP +static void hex_dump(UINT8 *buf, int size) +{ + int len, i, j, c; + + for(i=0;i 16) + len = 16; + printf("%08x ", i); + for(j=0;j<16;j++) { + if (j < len) + printf(" %02x", buf[i+j]); + else + printf(" "); + } + printf(" "); + for(j=0;j '~') + c = '.'; + printf("%c", c); + } + printf("\n"); + } +} +#endif + +/* + * The following code is the main loop of the file converter + */ +static int av_encode(AVFormatContext **output_files, + int nb_output_files, + AVFormatContext **input_files, + int nb_input_files, + AVStreamMap *stream_maps, int nb_stream_maps) +{ + int ret, i, j, k, n, nb_istreams, nb_ostreams = 0; + AVFormatContext *is, *os; + AVCodecContext *codec, *icodec; + AVOutputStream *ost, **ost_table = NULL; + AVInputStream *ist, **ist_table = NULL; + INT64 min_pts, start_time; + AVInputFile file_table[nb_input_files]; + + memset(file_table, 0, sizeof(file_table)); + + /* input stream init */ + j = 0; + for(i=0;inb_streams; + } + nb_istreams = j; + + ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *)); + if (!ist_table) + return -ENOMEM; + + for(i=0;inb_streams;k++) { + ist = ist_table[j++]; + ist->st = is->streams[k]; + ist->file_index = i; + ist->index = k; + ist->discard = 1; /* the stream is discarded by default + (changed later) */ + } + } + + /* output stream init */ + nb_ostreams = 0; + for(i=0;inb_streams; + } + if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) { + fprintf(stderr, "Number of stream maps must match number of output streams\n"); + exit(1); + } + + ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams); + if (!ost_table) + goto fail; + for(i=0;inb_streams;i++) { + int found; + ost = ost_table[n++]; + ost->file_index = k; + ost->index = i; + ost->st = os->streams[i]; + if (nb_stream_maps > 0) { + ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + + stream_maps[n-1].stream_index; + } else { + /* get corresponding input stream index : we select the first one with the right type */ + found = 0; + for(j=0;jdiscard && + ist->st->codec.codec_type == ost->st->codec.codec_type) { + ost->source_index = j; + found = 1; + } + } + + if (!found) { + /* try again and reuse existing stream */ + for(j=0;jst->codec.codec_type == ost->st->codec.codec_type) { + ost->source_index = j; + found = 1; + } + } + if (!found) { + fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n", + ost->file_index, ost->index); + exit(1); + } + } + } + ist = ist_table[ost->source_index]; + ist->discard = 0; + } + } + + /* dump the stream mapping */ + fprintf(stderr, "Stream mapping:\n"); + for(i=0;i #%d.%d\n", + ist_table[ost->source_index]->file_index, + ist_table[ost->source_index]->index, + ost->file_index, + ost->index); + } + + /* for each output stream, we compute the right encoding parameters */ + for(i=0;isource_index]; + + codec = &ost->st->codec; + icodec = &ist->st->codec; + + switch(codec->codec_type) { + case CODEC_TYPE_AUDIO: + /* check if same codec with same parameters. If so, no + reencoding is needed */ + if (codec->codec_id == icodec->codec_id && + codec->bit_rate == icodec->bit_rate && + codec->sample_rate == icodec->sample_rate && + codec->channels == icodec->channels) { + /* no reencoding */ + } else { + if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE)) + goto fail; + + if (codec->channels == icodec->channels && + codec->sample_rate == icodec->sample_rate) { + ost->audio_resample = 0; + } else { + ost->audio_resample = 1; + ost->resample = audio_resample_init(codec->channels, icodec->channels, + codec->sample_rate, + icodec->sample_rate); + } + ist->decoding_needed = 1; + ost->encoding_needed = 1; + } + break; + case CODEC_TYPE_VIDEO: + /* check if same codec with same parameters. If so, no + reencoding is needed */ + if (codec->codec_id == icodec->codec_id && + codec->bit_rate == icodec->bit_rate && + codec->frame_rate == icodec->frame_rate && + codec->width == icodec->width && + codec->height == icodec->height) { + /* no reencoding */ + } else { + if (codec->width == icodec->width && + codec->height == icodec->height) { + ost->video_resample = 0; + } else { + UINT8 *buf; + ost->video_resample = 1; + buf = malloc((codec->width * codec->height * 3) / 2); + if (!buf) + goto fail; + ost->pict_tmp.data[0] = buf; + ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height); + ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4; + ost->pict_tmp.linesize[0] = codec->width; + ost->pict_tmp.linesize[1] = codec->width / 2; + ost->pict_tmp.linesize[2] = codec->width / 2; + + ost->img_resample_ctx = img_resample_init( + ost->st->codec.width, ost->st->codec.height, + ist->st->codec.width, ist->st->codec.height); + } + ost->encoding_needed = 1; + ist->decoding_needed = 1; + } + break; + } + } + + /* open each encoder */ + for(i=0;iencoding_needed) { + AVCodec *codec; + codec = avcodec_find_encoder(ost->st->codec.codec_id); + if (!codec) { + fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", + ost->file_index, ost->index); + exit(1); + } + if (avcodec_open(&ost->st->codec, codec) < 0) { + fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", + ost->file_index, ost->index); + exit(1); + } + } + } + + /* open each decoder */ + for(i=0;idecoding_needed) { + AVCodec *codec; + codec = avcodec_find_decoder(ist->st->codec.codec_id); + if (!codec) { + fprintf(stderr, "Unsupported codec for input stream #%d.%d\n", + ist->file_index, ist->index); + exit(1); + } + if (avcodec_open(&ist->st->codec, codec) < 0) { + fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", + ist->file_index, ist->index); + exit(1); + } + } + } + + /* init pts */ + for(i=0;ipts = 0; + ist->frame_number = 0; + } + + /* compute buffer size max (should use a complete heuristic) */ + for(i=0;iformat->write_header(os); + } + + start_time = gettime(); + min_pts = 0; + for(;;) { + int file_index, ist_index; + AVPacket pkt; + UINT8 *ptr; + int len; + UINT8 *data_buf; + int data_size, got_picture; + AVPicture picture; + short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2]; + + /* select the input file with the smallest pts */ + redo: + file_index = -1; + min_pts = (1ULL << 63) - 1; + for(i=0;idiscard && !file_table[ist->file_index].eof_reached && ist->pts < min_pts) { + min_pts = ist->pts; + file_index = ist->file_index; + } + } + /* if none, if is finished */ + if (file_index < 0) + break; + /* finish if recording time exhausted */ + if (recording_time > 0 && min_pts >= recording_time) + break; + /* read a packet from it and output it in the fifo */ + + is = input_files[file_index]; + if (av_read_packet(is, &pkt) < 0) { + file_table[file_index].eof_reached = 1; + continue; + } + ist_index = file_table[file_index].ist_index + pkt.stream_index; + ist = ist_table[ist_index]; + if (ist->discard) { + continue; + } + +#ifdef HEX_DUMP + printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size); + hex_dump(pkt.data, pkt.size); +#endif + + // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size); + + len = pkt.size; + ptr = pkt.data; + while (len > 0) { + + /* decode the packet if needed */ + data_buf = NULL; /* fail safe */ + data_size = 0; + if (ist->decoding_needed) { + switch(ist->st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + if (ist->st->codec.codec_id == CODEC_ID_PCM) { + /* no need to call a codec */ + data_buf = ptr; + data_size = len; + ret = len; + } else { + ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size, + ptr, len); + if (ret < 0) + goto fail_decode; + if (data_size == 0) { + /* no audio frame */ + ptr += ret; + len -= ret; + continue; + } + data_buf = (UINT8 *)samples; + } + break; + case CODEC_TYPE_VIDEO: + if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) { + int size; + size = (ist->st->codec.width * ist->st->codec.height); + + picture.data[0] = ptr; + picture.data[1] = picture.data[0] + size; + picture.data[2] = picture.data[1] + size / 4; + picture.linesize[0] = ist->st->codec.width; + picture.linesize[1] = ist->st->codec.width / 2; + picture.linesize[2] = ist->st->codec.width / 2; + ret = len; + } else { + data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2; + ret = avcodec_decode_video(&ist->st->codec, + &picture, &got_picture, ptr, len); + if (ret < 0) { + fail_decode: + fprintf(stderr, "Error while decoding stream #%d.%d\n", + ist->file_index, ist->index); + av_free_packet(&pkt); + goto redo; + } + if (!got_picture) { + /* no picture yet */ + ptr += ret; + len -= ret; + continue; + } + } + break; + default: + goto fail_decode; + } + } else { + data_buf = ptr; + data_size = len; + ret = len; + } + /* update pts */ + switch(ist->st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate; + ist->sample_index += data_size / (2 * ist->st->codec.channels); + break; + case CODEC_TYPE_VIDEO: + ist->frame_number++; + ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) / + ist->st->codec.frame_rate; + break; + } + ptr += ret; + len -= ret; + + /* transcode raw format, encode packets and output them */ + + for(i=0;isource_index == ist_index) { + os = output_files[ost->file_index]; + + if (ost->encoding_needed) { + switch(ost->st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + do_audio_out(os, ost, ist, data_buf, data_size); + break; + case CODEC_TYPE_VIDEO: + do_video_out(os, ost, ist, &picture); + break; + } + } else { + /* no reencoding needed : output the packet directly */ + os->format->write_packet(os, ost->index, data_buf, data_size); + } + } + } + } + av_free_packet(&pkt); + + /* dump report by using the first video and audio streams */ + { + char buf[1024]; + AVFormatContext *oc; + INT64 total_size, ti; + AVCodecContext *enc; + int frame_number, vid; + double bitrate, ti1; + static INT64 last_time; + + if ((min_pts - last_time) >= 500000) { + last_time = min_pts; + + oc = output_files[0]; + + total_size = url_ftell(&oc->pb); + + buf[0] = '\0'; + ti = (1ULL << 63) - 1; + vid = 0; + for(i=0;ist->codec; + ist = ist_table[ost->source_index]; + if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) { + frame_number = ist->frame_number; + sprintf(buf + strlen(buf), "frame=%5d q=%2d ", + frame_number, enc->quality); + vid = 1; + } + /* compute min pts value */ + if (!ist->discard && ist->pts < ti) { + ti = ist->pts; + } + } + + ti1 = ti / 1000000.0; + if (ti1 < 0.1) + ti1 = 0.1; + bitrate = (double)(total_size * 8) / ti1 / 1000.0; + + sprintf(buf + strlen(buf), "size=%8LdkB time=%0.1f bitrate=%6.1fkbits/s", + total_size / 1024, ti1, bitrate); + + fprintf(stderr, "%s \r", buf); + fflush(stderr); + } + } + } + + /* dump report by using the first video and audio streams */ + { + char buf[1024]; + AVFormatContext *oc; + INT64 total_size, ti; + AVCodecContext *enc; + int frame_number, vid; + double bitrate, ti1; + + oc = output_files[0]; + + total_size = url_ftell(&oc->pb); + + buf[0] = '\0'; + ti = (1ULL << 63) - 1; + vid = 0; + for(i=0;ist->codec; + ist = ist_table[ost->source_index]; + if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) { + frame_number = ist->frame_number; + sprintf(buf + strlen(buf), "frame=%5d q=%2d ", + frame_number, enc->quality); + vid = 1; + } + /* compute min pts value */ + if (!ist->discard && ist->pts < ti) { + ti = ist->pts; + } + } + + ti1 = ti / 1000000.0; + if (ti1 < 0.1) + ti1 = 0.1; + bitrate = (double)(total_size * 8) / ti1 / 1000.0; + + sprintf(buf + strlen(buf), "size=%8LdkB time=%0.1f bitrate=%6.1fkbits/s", + total_size / 1024, ti1, bitrate); + + fprintf(stderr, "%s \n", buf); + } + /* close each encoder */ + for(i=0;iencoding_needed) { + avcodec_close(&ost->st->codec); + } + } + + /* close each decoder */ + for(i=0;idecoding_needed) { + avcodec_close(&ist->st->codec); + } + } + + + /* write the trailer if needed and close file */ + for(i=0;iformat->write_trailer(os); + } + /* finished ! */ + + ret = 0; + fail1: + if (ist_table) { + for(i=0;ipict_tmp.data[0]) + free(ost->pict_tmp.data[0]); + if (ost->video_resample) + img_resample_close(ost->img_resample_ctx); + if (ost->audio_resample) + audio_resample_close(ost->resample); + free(ost); + } + } + free(ost_table); + } + return ret; + fail: + ret = -ENOMEM; + goto fail1; +} + +#if 0 +int file_read(const char *filename) +{ + URLContext *h; + unsigned char buffer[1024]; + int len, i; + + if (url_open(&h, filename, O_RDONLY) < 0) { + printf("could not open '%s'\n", filename); + return -1; + } + for(;;) { + len = url_read(h, buffer, sizeof(buffer)); + if (len <= 0) + break; + for(i=0;iname, arg) != 0) f = f->next; + if (f == NULL) { + fprintf(stderr, "Invalid format: %s\n", arg); + exit(1); + } + file_format = f; +} + +void opt_video_bitrate(const char *arg) +{ + video_bit_rate = atoi(arg) * 1000; +} + +void opt_frame_rate(const char *arg) +{ + frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE); +} + +void opt_frame_size(const char *arg) +{ + parse_image_size(&frame_width, &frame_height, arg); + if (frame_width <= 0 || frame_height <= 0) { + fprintf(stderr, "Incorrect frame size\n"); + exit(1); + } + if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { + fprintf(stderr, "Frame size must be a multiple of 2\n"); + exit(1); + } +} + +void opt_gop_size(const char *arg) +{ + gop_size = atoi(arg); +} + +void opt_qscale(const char *arg) +{ + video_qscale = atoi(arg); + if (video_qscale < 0 || + video_qscale > 31) { + fprintf(stderr, "qscale must be >= 1 and <= 31\n"); + exit(1); + } +} + + +void opt_audio_bitrate(const char *arg) +{ + audio_bit_rate = atoi(arg) * 1000; +} + +void opt_audio_rate(const char *arg) +{ + audio_sample_rate = atoi(arg); +} + +void opt_audio_channels(const char *arg) +{ + audio_channels = atoi(arg); +} + +void opt_video_device(const char *arg) +{ + v4l_device = strdup(arg); +} + +void opt_audio_device(const char *arg) +{ + audio_device = strdup(arg); +} + +void opt_audio_codec(const char *arg) +{ + AVCodec *p; + + p = first_avcodec; + while (p) { + if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO) + break; + p = p->next; + } + if (p == NULL) { + fprintf(stderr, "Unknown audio codec '%s'\n", arg); + exit(1); + } else { + audio_codec_id = p->id; + } +} + +const char *motion_str[] = { + "zero", + "full", + "log", + "phods", + NULL, +}; + +void opt_motion_estimation(const char *arg) +{ + const char **p; + p = motion_str; + for(;;) { + if (!*p) { + fprintf(stderr, "Unknown motion estimation method '%s'\n", arg); + exit(1); + } + if (!strcmp(*p, arg)) + break; + p++; + } + motion_estimation_method = p - motion_str; +} + +void opt_video_codec(const char *arg) +{ + AVCodec *p; + + p = first_avcodec; + while (p) { + if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO) + break; + p = p->next; + } + if (p == NULL) { + fprintf(stderr, "Unknown video codec '%s'\n", arg); + exit(1); + } else { + video_codec_id = p->id; + } +} + +void opt_map(const char *arg) +{ + AVStreamMap *m; + const char *p; + + p = arg; + m = &stream_maps[nb_stream_maps++]; + + m->file_index = strtol(arg, (char **)&p, 0); + if (*p) + p++; + m->stream_index = strtol(arg, (char **)&p, 0); +} + +void opt_recording_time(const char *arg) +{ + recording_time = parse_date(arg, 1); +} + +/* return the number of packet read to find the codec parameters */ +int find_codec_parameters(AVFormatContext *ic) +{ + int val, i, count, ret, got_picture, size; + AVCodec *codec; + AVCodecContext *enc; + AVStream *st; + AVPacket *pkt; + AVPicture picture; + AVPacketList *pktl, **ppktl; + short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2]; + UINT8 *ptr; + + count = 0; + ppktl = &ic->packet_buffer; + for(;;) { + for(i=0;inb_streams;i++) { + enc = &ic->streams[i]->codec; + + switch(enc->codec_type) { + case CODEC_TYPE_AUDIO: + val = enc->sample_rate; + break; + case CODEC_TYPE_VIDEO: + val = enc->width; + break; + default: + val = 1; + break; + } + /* if no parameters supplied, then we should read it from + the stream */ + if (val == 0) + break; + } + if (i == ic->nb_streams) { + ret = count; + break; + } + + if (count == 0) { + /* open each codec */ + for(i=0;inb_streams;i++) { + st = ic->streams[i]; + codec = avcodec_find_decoder(st->codec.codec_id); + if (codec == NULL) { + ret = -1; + goto the_end; + } + avcodec_open(&st->codec, codec); + } + } + pktl = av_mallocz(sizeof(AVPacketList)); + if (!pktl) { + ret = -1; + break; + } + + /* add the packet in the buffered packet list */ + *ppktl = pktl; + ppktl = &pktl->next; + + pkt = &pktl->pkt; + if (ic->format->read_packet(ic, pkt) < 0) { + ret = -1; + break; + } + st = ic->streams[pkt->stream_index]; + + /* decode the data and update codec parameters */ + ptr = pkt->data; + size = pkt->size; + while (size > 0) { + switch(st->codec.codec_type) { + case CODEC_TYPE_VIDEO: + ret = avcodec_decode_video(&st->codec, &picture, &got_picture, ptr, size); + break; + case CODEC_TYPE_AUDIO: + ret = avcodec_decode_audio(&st->codec, samples, &got_picture, ptr, size); + break; + default: + ret = -1; + break; + } + if (ret < 0) { + ret = -1; + goto the_end; + } + if (got_picture) + break; + ptr += ret; + size -= ret; + } + + count++; + } + the_end: + if (count > 0) { + /* close each codec */ + for(i=0;inb_streams;i++) { + st = ic->streams[i]; + avcodec_close(&st->codec); + } + } + return ret; +} + + +void opt_input_file(const char *filename) +{ + AVFormatContext *ic; + AVFormatParameters params, *ap = ¶ms; + URLFormat url_format; + AVFormat *fmt; + int err, i, ret; + + ic = av_mallocz(sizeof(AVFormatContext)); + strcpy(ic->filename, filename); + /* first format guess to know if we must open file */ + fmt = file_format; + if (!fmt) + fmt = guess_format(NULL, filename, NULL); + + if (fmt == NULL || !(fmt->flags & AVFMT_NOFILE)) { + /* open file */ + if (url_fopen(&ic->pb, filename, URL_RDONLY) < 0) { + fprintf(stderr, "Could not open '%s'\n", filename); + exit(1); + } + + /* find format and set default parameters */ + fmt = file_format; + err = url_getformat(url_fileno(&ic->pb), &url_format); + if (err >= 0) { + if (!fmt) + fmt = guess_format(url_format.format_name, NULL, NULL); + ap->sample_rate = url_format.sample_rate; + ap->frame_rate = url_format.frame_rate; + ap->channels = url_format.channels; + ap->width = url_format.width; + ap->height = url_format.height; + ap->pix_fmt = url_format.pix_fmt; + } else { + if (!fmt) + fmt = guess_format(NULL, filename, NULL); + memset(ap, 0, sizeof(*ap)); + } + } else { + memset(ap, 0, sizeof(*ap)); + } + + if (!fmt || !fmt->read_header) { + fprintf(stderr, "%s: Unknown file format\n", filename); + exit(1); + } + ic->format = fmt; + + /* get default parameters from command line */ + if (!ap->sample_rate) + ap->sample_rate = audio_sample_rate; + if (!ap->channels) + ap->channels = audio_channels; + + if (!ap->frame_rate) + ap->frame_rate = frame_rate; + if (!ap->width) + ap->width = frame_width; + if (!ap->height) + ap->height = frame_height; + + err = ic->format->read_header(ic, ap); + if (err < 0) { + fprintf(stderr, "%s: Error while parsing header\n", filename); + exit(1); + } + + /* If not enough info for the codecs, we decode the first frames + to get it. (used in mpeg case for example) */ + ret = find_codec_parameters(ic); + if (ret < 0) { + fprintf(stderr, "%s: could not find codec parameters\n", filename); + exit(1); + } + + /* update the current parameters so that they match the one of the input stream */ + for(i=0;inb_streams;i++) { + AVCodecContext *enc = &ic->streams[i]->codec; + switch(enc->codec_type) { + case CODEC_TYPE_AUDIO: + audio_channels = enc->channels; + audio_sample_rate = enc->sample_rate; + break; + case CODEC_TYPE_VIDEO: + frame_height = enc->height; + frame_width = enc->width; + frame_rate = enc->frame_rate; + break; + } + } + + input_files[nb_input_files] = ic; + /* dump the file content */ + dump_format(ic, nb_input_files, filename, 0); + nb_input_files++; + file_format = NULL; +} + +void opt_output_file(const char *filename) +{ + AVStream *st; + AVFormatContext *oc; + int use_video, use_audio, nb_streams; + int codec_id; + + if (!strcmp(filename, "-")) + filename = "pipe:"; + + oc = av_mallocz(sizeof(AVFormatContext)); + + if (!file_format) { + file_format = guess_format(NULL, filename, NULL); + if (!file_format) + file_format = &mpeg_mux_format; + } + + oc->format = file_format; + + if (!strcmp(file_format->name, "ffm") && + strstart(filename, "http:", NULL)) { + /* special case for files sent to ffserver: we get the stream + parameters from ffserver */ + if (read_ffserver_streams(oc, filename) < 0) { + fprintf(stderr, "Could not read stream parameters from '%s'\n", filename); + exit(1); + } + } else { + use_video = file_format->video_codec != CODEC_ID_NONE; + use_audio = file_format->audio_codec != CODEC_ID_NONE; + + if (audio_disable) { + use_audio = 0; + } + if (video_disable) { + use_video = 0; + } + + nb_streams = 0; + if (use_video) { + AVCodecContext *video_enc; + + st = av_mallocz(sizeof(AVStream)); + if (!st) { + fprintf(stderr, "Could not alloc stream\n"); + exit(1); + } + video_enc = &st->codec; + + codec_id = file_format->video_codec; + if (video_codec_id != CODEC_ID_NONE) + codec_id = video_codec_id; + + video_enc->codec_id = codec_id; + video_enc->codec_type = CODEC_TYPE_VIDEO; + + video_enc->bit_rate = video_bit_rate; + video_enc->frame_rate = frame_rate; + + video_enc->width = frame_width; + video_enc->height = frame_height; + if (!intra_only) + video_enc->gop_size = gop_size; + else + video_enc->gop_size = 0; + if (video_qscale || same_quality) { + video_enc->flags |= CODEC_FLAG_QSCALE; + video_enc->quality = video_qscale; + } + + oc->streams[nb_streams] = st; + nb_streams++; + } + + if (use_audio) { + AVCodecContext *audio_enc; + + st = av_mallocz(sizeof(AVStream)); + if (!st) { + fprintf(stderr, "Could not alloc stream\n"); + exit(1); + } + audio_enc = &st->codec; + codec_id = file_format->audio_codec; + if (audio_codec_id != CODEC_ID_NONE) + codec_id = audio_codec_id; + audio_enc->codec_id = codec_id; + audio_enc->codec_type = CODEC_TYPE_AUDIO; + + audio_enc->bit_rate = audio_bit_rate; + audio_enc->sample_rate = audio_sample_rate; + audio_enc->channels = audio_channels; + oc->streams[nb_streams] = st; + nb_streams++; + } + + oc->nb_streams = nb_streams; + + if (!nb_streams) { + fprintf(stderr, "No audio or video selected\n"); + exit(1); + } + + if (str_title) + nstrcpy(oc->title, sizeof(oc->title), str_title); + if (str_author) + nstrcpy(oc->author, sizeof(oc->author), str_author); + if (str_copyright) + nstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright); + if (str_comment) + nstrcpy(oc->comment, sizeof(oc->comment), str_comment); + } + + output_files[nb_output_files] = oc; + /* dump the file content */ + dump_format(oc, nb_output_files, filename, 1); + nb_output_files++; + + strcpy(oc->filename, filename); + if (!(oc->format->flags & AVFMT_NOFILE)) { + /* test if it already exists to avoid loosing precious files */ + if (!file_overwrite && + (strchr(filename, ':') == NULL || + strstart(filename, "file:", NULL))) { + if (url_exist(filename)) { + int c; + + printf("File '%s' already exists. Overwrite ? [y/N] ", filename); + fflush(stdout); + c = getchar(); + if (toupper(c) != 'Y') { + fprintf(stderr, "Not overwriting - exiting\n"); + exit(1); + } + } + } + + /* open the file */ + if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) { + fprintf(stderr, "Could not open '%s'\n", filename); + exit(1); + } + } + + /* reset some options */ + file_format = NULL; + audio_disable = 0; + video_disable = 0; + audio_codec_id = CODEC_ID_NONE; + video_codec_id = CODEC_ID_NONE; +} + +void show_formats(void) +{ + AVFormat *f; + URLProtocol *up; + AVCodec *p; + const char **pp; + + printf("File formats:\n"); + printf(" Encoding:"); + for(f = first_format; f != NULL; f = f->next) { + if (f->write_header) + printf(" %s", f->name); + } + printf("\n"); + printf(" Decoding:"); + for(f = first_format; f != NULL; f = f->next) { + if (f->read_header) + printf(" %s", f->name); + } + printf("\n"); + + printf("Codecs:\n"); + printf(" Encoders:"); + for(p = first_avcodec; p != NULL; p = p->next) { + if (p->encode) + printf(" %s", p->name); + } + printf("\n"); + + printf(" Decoders:"); + for(p = first_avcodec; p != NULL; p = p->next) { + if (p->decode) + printf(" %s", p->name); + } + printf("\n"); + + printf("Supported file protocols:"); + for(up = first_protocol; up != NULL; up = up->next) + printf(" %s:", up->name); + printf("\n"); + + printf("Frame size abbreviations: sqcif qcif cif 4cif\n"); + printf("Motion estimation methods:"); + pp = motion_str; + while (*pp) { + printf(" %s", *pp); + if ((pp - motion_str) == ME_ZERO) + printf("(fastest)"); + else if ((pp - motion_str) == ME_FULL) + printf("(slowest)"); + else if ((pp - motion_str) == ME_LOG) + printf("(default)"); + pp++; + } + printf("\n"); + exit(1); +} + +void show_help(void) +{ + const OptionDef *po; + int i, expert; + + printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000,2001 Gerard Lantau\n" + "usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n" + "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n" + "\n" + "Main options are:\n"); + for(i=0;i<2;i++) { + if (i == 1) + printf("\nAdvanced options are:\n"); + for(po = options; po->name != NULL; po++) { + char buf[64]; + expert = (po->flags & OPT_EXPERT) != 0; + if (expert == i) { + strcpy(buf, po->name); + if (po->flags & HAS_ARG) { + strcat(buf, " "); + strcat(buf, po->argname); + } + printf("-%-17s %s\n", buf, po->help); + } + } + } + + exit(1); +} + +const OptionDef options[] = { + { "L", 0, {show_licence}, "show license" }, + { "h", 0, {show_help}, "show help" }, + { "formats", 0, {show_formats}, "show available formats, codecs, protocols, ..." }, + { "f", HAS_ARG, {opt_format}, "force format", "fmt" }, + { "i", HAS_ARG, {opt_input_file}, "input file name", "filename" }, + { "y", OPT_BOOL, {int_arg:&file_overwrite}, "overwrite output files" }, + { "map", HAS_ARG | OPT_EXPERT, {opt_map}, "set input stream mapping", "file:stream" }, + { "t", HAS_ARG, {opt_recording_time}, "set the recording time", "duration" }, + { "title", HAS_ARG | OPT_STRING, {str_arg: &str_title}, "set the title", "string" }, + { "author", HAS_ARG | OPT_STRING, {str_arg: &str_author}, "set the author", "string" }, + { "copyright", HAS_ARG | OPT_STRING, {str_arg: &str_copyright}, "set the copyright", "string" }, + { "comment", HAS_ARG | OPT_STRING, {str_arg: &str_comment}, "set the comment", "string" }, + /* video options */ + { "b", HAS_ARG, {opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" }, + { "r", HAS_ARG, {opt_frame_rate}, "set frame rate (in Hz)", "rate" }, + { "s", HAS_ARG, {opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, + { "g", HAS_ARG | OPT_EXPERT, {opt_gop_size}, "set the group of picture size", "gop_size" }, + { "intra", OPT_BOOL | OPT_EXPERT, {int_arg: &intra_only}, "use only intra frames"}, + { "vn", OPT_BOOL, {int_arg: &video_disable}, "disable video" }, + { "qscale", HAS_ARG | OPT_EXPERT, {opt_qscale}, "use fixed video quantiser scale (VBR)", "q" }, + { "vd", HAS_ARG | OPT_EXPERT, {opt_video_device}, "set video device", "device" }, + { "vcodec", HAS_ARG | OPT_EXPERT, {opt_video_codec}, "force video codec", "codec" }, + { "me", HAS_ARG | OPT_EXPERT, {opt_motion_estimation}, "set motion estimation method", + "method" }, + { "sameq", OPT_BOOL, {int_arg: &same_quality}, + "use same video quality as source (implies VBR)" }, + /* audio options */ + { "ab", HAS_ARG, {opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", }, + { "ar", HAS_ARG, {opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" }, + { "ac", HAS_ARG, {opt_audio_channels}, "set number of audio channels", "channels" }, + { "an", OPT_BOOL, {int_arg: &audio_disable}, "disable audio" }, + { "ad", HAS_ARG | OPT_EXPERT, {opt_audio_device}, "set audio device", "device" }, + { "acodec", HAS_ARG | OPT_EXPERT, {opt_audio_codec}, "force audio codec", "codec" }, + + { NULL, }, +}; + +int main(int argc, char **argv) +{ + int optindex, i; + const char *opt, *arg; + const OptionDef *po; + + register_all(); + + if (argc <= 1) + show_help(); + + optindex = 1; + while (optindex < argc) { + opt = argv[optindex++]; + + if (opt[0] == '-' && opt[1] != '\0') { + po = options; + while (po->name != NULL) { + if (!strcmp(opt + 1, po->name)) + break; + po++; + } + if (!po->name) { + fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); + exit(1); + } + arg = NULL; + if (po->flags & HAS_ARG) + arg = argv[optindex++]; + if (po->flags & OPT_STRING) { + char *str; + str = strdup(arg); + *po->u.str_arg = str; + } else if (po->flags & OPT_BOOL) { + *po->u.int_arg = 1; + } else { + po->u.func_arg(arg); + } + } else { + opt_output_file(opt); + } + } + + + if (nb_input_files == 0) { + if (nb_output_files != 1) { + fprintf(stderr, "Only one output file supported when grabbing\n"); + exit(1); + } + av_grab(output_files[0]); + } else { + if (nb_output_files <= 0) { + fprintf(stderr, "Must supply at least one output file\n"); + exit(1); + } + av_encode(output_files, nb_output_files, input_files, nb_input_files, + stream_maps, nb_stream_maps); + } + + /* close files */ + for(i=0;iformat->flags & AVFMT_NOFILE)) + url_fclose(&output_files[i]->pb); + } + for(i=0;iformat->flags & AVFMT_NOFILE)) + url_fclose(&input_files[i]->pb); + } + + return 0; +} -- cgit v1.1