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authorJosh de Kock <josh@itanimul.li>2016-09-22 19:20:24 +0100
committerJosh de Kock <josh@itanimul.li>2016-09-24 16:52:40 +0100
commit47ea6f5c9d1bb5a3a6b9429857dbd6ee32809b0e (patch)
tree6482bbab572145b8ed3ea47ccdec8ec36c61d978 /libavdevice/sdl.c
parent9c5fab5ed421da4e55cafcbff0482e1ad926c27b (diff)
downloadffmpeg-streaming-47ea6f5c9d1bb5a3a6b9429857dbd6ee32809b0e.zip
ffmpeg-streaming-47ea6f5c9d1bb5a3a6b9429857dbd6ee32809b0e.tar.gz
lavd: drop SDL1 device and SDL1 support
Signed-off-by: Josh de Kock <josh@itanimul.li>
Diffstat (limited to 'libavdevice/sdl.c')
-rw-r--r--libavdevice/sdl.c377
1 files changed, 0 insertions, 377 deletions
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 <SDL.h>
-#include <SDL_thread.h>
-
-#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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