From 47ea6f5c9d1bb5a3a6b9429857dbd6ee32809b0e Mon Sep 17 00:00:00 2001 From: Josh de Kock Date: Thu, 22 Sep 2016 19:20:24 +0100 Subject: lavd: drop SDL1 device and SDL1 support Signed-off-by: Josh de Kock --- libavdevice/sdl.c | 377 ------------------------------------------------------ 1 file changed, 377 deletions(-) delete mode 100644 libavdevice/sdl.c (limited to 'libavdevice/sdl.c') diff --git a/libavdevice/sdl.c b/libavdevice/sdl.c deleted file mode 100644 index 4322750..0000000 --- a/libavdevice/sdl.c +++ /dev/null @@ -1,377 +0,0 @@ -/* - * Copyright (c) 2011 Stefano Sabatini - * - * This file is part of FFmpeg. - * - * FFmpeg 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. - * - * FFmpeg 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * libSDL output device - */ - -#include -#include - -#include "libavutil/avstring.h" -#include "libavutil/imgutils.h" -#include "libavutil/opt.h" -#include "libavutil/parseutils.h" -#include "libavutil/pixdesc.h" -#include "libavutil/time.h" -#include "avdevice.h" - -typedef struct { - AVClass *class; - SDL_Surface *surface; - SDL_Overlay *overlay; - char *window_title; - char *icon_title; - int window_width, window_height; /**< size of the window */ - int window_fullscreen; - - SDL_Rect overlay_rect; - int overlay_fmt; - - int sdl_was_already_inited; - SDL_Thread *event_thread; - SDL_mutex *mutex; - SDL_cond *init_cond; - int init_ret; /* return code used to signal initialization errors */ - int inited; - int quit; -} SDLContext; - -static const struct sdl_overlay_pix_fmt_entry { - enum AVPixelFormat pix_fmt; int overlay_fmt; -} sdl_overlay_pix_fmt_map[] = { - { AV_PIX_FMT_YUV420P, SDL_IYUV_OVERLAY }, - { AV_PIX_FMT_YUYV422, SDL_YUY2_OVERLAY }, - { AV_PIX_FMT_UYVY422, SDL_UYVY_OVERLAY }, - { AV_PIX_FMT_NONE, 0 }, -}; - -static int sdl_write_trailer(AVFormatContext *s) -{ - SDLContext *sdl = s->priv_data; - - sdl->quit = 1; - - if (sdl->overlay) - SDL_FreeYUVOverlay(sdl->overlay); - sdl->overlay = NULL; - if (sdl->event_thread) - SDL_WaitThread(sdl->event_thread, NULL); - sdl->event_thread = NULL; - if (sdl->mutex) - SDL_DestroyMutex(sdl->mutex); - sdl->mutex = NULL; - if (sdl->init_cond) - SDL_DestroyCond(sdl->init_cond); - sdl->init_cond = NULL; - - if (!sdl->sdl_was_already_inited) - SDL_Quit(); - - return 0; -} - -static void compute_overlay_rect(AVFormatContext *s) -{ - AVRational sar, dar; /* sample and display aspect ratios */ - SDLContext *sdl = s->priv_data; - AVStream *st = s->streams[0]; - AVCodecParameters *par = st->codecpar; - SDL_Rect *overlay_rect = &sdl->overlay_rect; - - /* compute overlay width and height from the codec context information */ - sar = st->sample_aspect_ratio.num ? st->sample_aspect_ratio : (AVRational){ 1, 1 }; - dar = av_mul_q(sar, (AVRational){ par->width, par->height }); - - /* we suppose the screen has a 1/1 sample aspect ratio */ - if (sdl->window_width && sdl->window_height) { - /* fit in the window */ - if (av_cmp_q(dar, (AVRational){ sdl->window_width, sdl->window_height }) > 0) { - /* fit in width */ - overlay_rect->w = sdl->window_width; - overlay_rect->h = av_rescale(overlay_rect->w, dar.den, dar.num); - } else { - /* fit in height */ - overlay_rect->h = sdl->window_height; - overlay_rect->w = av_rescale(overlay_rect->h, dar.num, dar.den); - } - } else { - if (sar.num > sar.den) { - overlay_rect->w = par->width; - overlay_rect->h = av_rescale(overlay_rect->w, dar.den, dar.num); - } else { - overlay_rect->h = par->height; - overlay_rect->w = av_rescale(overlay_rect->h, dar.num, dar.den); - } - sdl->window_width = overlay_rect->w; - sdl->window_height = overlay_rect->h; - } - - overlay_rect->x = (sdl->window_width - overlay_rect->w) / 2; - overlay_rect->y = (sdl->window_height - overlay_rect->h) / 2; -} - -#define SDL_BASE_FLAGS (SDL_SWSURFACE|SDL_RESIZABLE) - -static int event_thread(void *arg) -{ - AVFormatContext *s = arg; - SDLContext *sdl = s->priv_data; - int flags = SDL_BASE_FLAGS | (sdl->window_fullscreen ? SDL_FULLSCREEN : 0); - AVStream *st = s->streams[0]; - AVCodecParameters *par = st->codecpar; - - /* initialization */ - if (SDL_Init(SDL_INIT_VIDEO) != 0) { - av_log(s, AV_LOG_ERROR, "Unable to initialize SDL: %s\n", SDL_GetError()); - sdl->init_ret = AVERROR(EINVAL); - goto init_end; - } - - SDL_WM_SetCaption(sdl->window_title, sdl->icon_title); - sdl->surface = SDL_SetVideoMode(sdl->window_width, sdl->window_height, - 24, flags); - if (!sdl->surface) { - av_log(sdl, AV_LOG_ERROR, "Unable to set video mode: %s\n", SDL_GetError()); - sdl->init_ret = AVERROR(EINVAL); - goto init_end; - } - - sdl->overlay = SDL_CreateYUVOverlay(par->width, par->height, - sdl->overlay_fmt, sdl->surface); - if (!sdl->overlay || sdl->overlay->pitches[0] < par->width) { - av_log(s, AV_LOG_ERROR, - "SDL does not support an overlay with size of %dx%d pixels\n", - par->width, par->height); - sdl->init_ret = AVERROR(EINVAL); - goto init_end; - } - - sdl->init_ret = 0; - av_log(s, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s -> w:%d h:%d\n", - par->width, par->height, av_get_pix_fmt_name(par->format), - sdl->overlay_rect.w, sdl->overlay_rect.h); - -init_end: - SDL_LockMutex(sdl->mutex); - sdl->inited = 1; - SDL_UnlockMutex(sdl->mutex); - SDL_CondSignal(sdl->init_cond); - - if (sdl->init_ret < 0) - return sdl->init_ret; - - /* event loop */ - while (!sdl->quit) { - int ret; - SDL_Event event; - SDL_PumpEvents(); - ret = SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_ALLEVENTS); - if (ret < 0) { - av_log(s, AV_LOG_ERROR, "Error when getting SDL event: %s\n", SDL_GetError()); - continue; - } - if (ret == 0) { - SDL_Delay(10); - continue; - } - - switch (event.type) { - case SDL_KEYDOWN: - switch (event.key.keysym.sym) { - case SDLK_ESCAPE: - case SDLK_q: - sdl->quit = 1; - break; - } - break; - case SDL_QUIT: - sdl->quit = 1; - break; - - case SDL_VIDEORESIZE: - sdl->window_width = event.resize.w; - sdl->window_height = event.resize.h; - - SDL_LockMutex(sdl->mutex); - sdl->surface = SDL_SetVideoMode(sdl->window_width, sdl->window_height, 24, SDL_BASE_FLAGS); - if (!sdl->surface) { - av_log(s, AV_LOG_ERROR, "Failed to set SDL video mode: %s\n", SDL_GetError()); - sdl->quit = 1; - } else { - compute_overlay_rect(s); - } - SDL_UnlockMutex(sdl->mutex); - break; - - default: - break; - } - } - - return 0; -} - -static int sdl_write_header(AVFormatContext *s) -{ - SDLContext *sdl = s->priv_data; - AVStream *st = s->streams[0]; - AVCodecParameters *par = st->codecpar; - int i, ret; - - if (!sdl->window_title) - sdl->window_title = av_strdup(s->filename); - if (!sdl->icon_title) - sdl->icon_title = av_strdup(sdl->window_title); - - if (SDL_WasInit(SDL_INIT_VIDEO)) { - av_log(s, AV_LOG_ERROR, - "SDL video subsystem was already inited, aborting\n"); - sdl->sdl_was_already_inited = 1; - ret = AVERROR(EINVAL); - goto fail; - } - - if ( s->nb_streams > 1 - || par->codec_type != AVMEDIA_TYPE_VIDEO - || par->codec_id != AV_CODEC_ID_RAWVIDEO) { - av_log(s, AV_LOG_ERROR, "Only supports one rawvideo stream\n"); - ret = AVERROR(EINVAL); - goto fail; - } - - for (i = 0; sdl_overlay_pix_fmt_map[i].pix_fmt != AV_PIX_FMT_NONE; i++) { - if (sdl_overlay_pix_fmt_map[i].pix_fmt == par->format) { - sdl->overlay_fmt = sdl_overlay_pix_fmt_map[i].overlay_fmt; - break; - } - } - - if (!sdl->overlay_fmt) { - av_log(s, AV_LOG_ERROR, - "Unsupported pixel format '%s', choose one of yuv420p, yuyv422, or uyvy422\n", - av_get_pix_fmt_name(par->format)); - ret = AVERROR(EINVAL); - goto fail; - } - - /* compute overlay width and height from the codec context information */ - compute_overlay_rect(s); - - sdl->init_cond = SDL_CreateCond(); - if (!sdl->init_cond) { - av_log(s, AV_LOG_ERROR, "Could not create SDL condition variable: %s\n", SDL_GetError()); - ret = AVERROR_EXTERNAL; - goto fail; - } - sdl->mutex = SDL_CreateMutex(); - if (!sdl->mutex) { - av_log(s, AV_LOG_ERROR, "Could not create SDL mutex: %s\n", SDL_GetError()); - ret = AVERROR_EXTERNAL; - goto fail; - } - sdl->event_thread = SDL_CreateThread(event_thread, s); - if (!sdl->event_thread) { - av_log(s, AV_LOG_ERROR, "Could not create SDL event thread: %s\n", SDL_GetError()); - ret = AVERROR_EXTERNAL; - goto fail; - } - - /* wait until the video system has been inited */ - SDL_LockMutex(sdl->mutex); - while (!sdl->inited) { - SDL_CondWait(sdl->init_cond, sdl->mutex); - } - SDL_UnlockMutex(sdl->mutex); - if (sdl->init_ret < 0) { - ret = sdl->init_ret; - goto fail; - } - return 0; - -fail: - sdl_write_trailer(s); - return ret; -} - -static int sdl_write_packet(AVFormatContext *s, AVPacket *pkt) -{ - SDLContext *sdl = s->priv_data; - AVCodecParameters *par = s->streams[0]->codecpar; - uint8_t *data[4]; - int linesize[4]; - int i; - - if (sdl->quit) { - sdl_write_trailer(s); - return AVERROR(EIO); - } - av_image_fill_arrays(data, linesize, pkt->data, par->format, par->width, par->height, 1); - - SDL_LockMutex(sdl->mutex); - SDL_FillRect(sdl->surface, &sdl->surface->clip_rect, - SDL_MapRGB(sdl->surface->format, 0, 0, 0)); - SDL_LockYUVOverlay(sdl->overlay); - for (i = 0; i < 3; i++) { - sdl->overlay->pixels [i] = data [i]; - sdl->overlay->pitches[i] = linesize[i]; - } - SDL_DisplayYUVOverlay(sdl->overlay, &sdl->overlay_rect); - SDL_UnlockYUVOverlay(sdl->overlay); - - SDL_UpdateRect(sdl->surface, - sdl->overlay_rect.x, sdl->overlay_rect.y, - sdl->overlay_rect.w, sdl->overlay_rect.h); - SDL_UnlockMutex(sdl->mutex); - - return 0; -} - -#define OFFSET(x) offsetof(SDLContext,x) - -static const AVOption options[] = { - { "window_title", "set SDL window title", OFFSET(window_title), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, - { "icon_title", "set SDL iconified window title", OFFSET(icon_title) , AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, - { "window_size", "set SDL window forced size", OFFSET(window_width), AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, - { "window_fullscreen", "set SDL window fullscreen", OFFSET(window_fullscreen), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM }, - { NULL }, -}; - -static const AVClass sdl_class = { - .class_name = "sdl outdev", - .item_name = av_default_item_name, - .option = options, - .version = LIBAVUTIL_VERSION_INT, - .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT, -}; - -AVOutputFormat ff_sdl_muxer = { - .name = "sdl", - .long_name = NULL_IF_CONFIG_SMALL("SDL output device"), - .priv_data_size = sizeof(SDLContext), - .audio_codec = AV_CODEC_ID_NONE, - .video_codec = AV_CODEC_ID_RAWVIDEO, - .write_header = sdl_write_header, - .write_packet = sdl_write_packet, - .write_trailer = sdl_write_trailer, - .flags = AVFMT_NOFILE | AVFMT_VARIABLE_FPS | AVFMT_NOTIMESTAMPS, - .priv_class = &sdl_class, -}; 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