mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-28 05:30:34 +00:00
ffplay: factorize frame queue operations
Create a generic frame and a frame queue struct to handle video picture queues and subtitle picture queues with common code. Also add the possibility to queue AVFrames, however at the moment we only use SDL_Overlay buffers for video and AVSubtitles for subtitles. Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
parent
4b58349bc8
commit
5a5128bab9
357
ffplay.c
357
ffplay.c
@ -121,25 +121,7 @@ typedef struct PacketQueue {
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#define VIDEO_PICTURE_QUEUE_SIZE 3
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#define SUBPICTURE_QUEUE_SIZE 16
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typedef struct VideoPicture {
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double pts; // presentation timestamp for this picture
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double duration; // estimated duration based on frame rate
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int64_t pos; // byte position in file
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SDL_Overlay *bmp;
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int width, height; /* source height & width */
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int allocated;
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int reallocate;
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int serial;
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AVRational sar;
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} VideoPicture;
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typedef struct SubPicture {
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double pts; /* presentation time stamp for this picture */
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AVSubtitle sub;
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int serial;
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} SubPicture;
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#define FRAME_QUEUE_SIZE FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)
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typedef struct AudioParams {
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int freq;
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@ -160,6 +142,35 @@ typedef struct Clock {
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int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */
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} Clock;
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/* Common struct for handling all types of decoded data and allocated render buffers. */
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typedef struct Frame {
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AVFrame *frame;
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AVSubtitle sub;
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int serial;
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double pts; /* presentation timestamp for the frame */
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double duration; /* estimated duration of the frame */
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int64_t pos; /* byte position of the frame in the input file */
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SDL_Overlay *bmp;
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int allocated;
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int reallocate;
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int width;
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int height;
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AVRational sar;
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} Frame;
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typedef struct FrameQueue {
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Frame queue[FRAME_QUEUE_SIZE];
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int rindex;
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int windex;
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int size;
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int max_size;
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int keep_last;
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int rindex_shown;
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SDL_mutex *mutex;
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SDL_cond *cond;
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PacketQueue *pktq;
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} FrameQueue;
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enum {
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AV_SYNC_AUDIO_MASTER, /* default choice */
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AV_SYNC_VIDEO_MASTER,
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@ -190,6 +201,9 @@ typedef struct VideoState {
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Clock vidclk;
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Clock extclk;
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FrameQueue pictq;
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FrameQueue subpq;
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int audio_stream;
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int av_sync_type;
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@ -242,10 +256,6 @@ typedef struct VideoState {
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int subtitle_stream;
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AVStream *subtitle_st;
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PacketQueue subtitleq;
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SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
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int subpq_size, subpq_rindex, subpq_windex;
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SDL_mutex *subpq_mutex;
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SDL_cond *subpq_cond;
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double frame_timer;
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double frame_last_returned_time;
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@ -255,10 +265,6 @@ typedef struct VideoState {
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PacketQueue videoq;
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int64_t video_current_pos; // current displayed file pos
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double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
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VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
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int pictq_size, pictq_rindex, pictq_windex, pictq_rindex_shown;
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SDL_mutex *pictq_mutex;
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SDL_cond *pictq_cond;
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#if !CONFIG_AVFILTER
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struct SwsContext *img_convert_ctx;
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#endif
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@ -371,6 +377,8 @@ int64_t get_valid_channel_layout(int64_t channel_layout, int channels)
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return 0;
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}
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static void free_picture(Frame *vp);
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static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
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{
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MyAVPacketList *pkt1;
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@ -517,6 +525,118 @@ static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *seria
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return ret;
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}
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static void frame_queue_unref_item(Frame *vp)
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{
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av_frame_unref(vp->frame);
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avsubtitle_free(&vp->sub);
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}
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static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last)
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{
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int i;
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memset(f, 0, sizeof(FrameQueue));
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if (!(f->mutex = SDL_CreateMutex()))
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return AVERROR(ENOMEM);
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if (!(f->cond = SDL_CreateCond()))
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return AVERROR(ENOMEM);
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f->pktq = pktq;
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f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE);
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f->keep_last = !!keep_last;
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for (i = 0; i < f->max_size; i++)
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if (!(f->queue[i].frame = av_frame_alloc()))
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return AVERROR(ENOMEM);
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return 0;
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}
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static void frame_queue_destory(FrameQueue *f)
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{
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int i;
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for (i = 0; i < f->max_size; i++) {
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Frame *vp = &f->queue[i];
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frame_queue_unref_item(vp);
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av_frame_free(&vp->frame);
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free_picture(vp);
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}
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SDL_DestroyMutex(f->mutex);
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SDL_DestroyCond(f->cond);
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}
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static void frame_queue_signal(FrameQueue *f)
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{
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SDL_LockMutex(f->mutex);
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SDL_CondSignal(f->cond);
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SDL_UnlockMutex(f->mutex);
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}
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static Frame *frame_queue_peek(FrameQueue *f)
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{
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return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
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}
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static Frame *frame_queue_peek_next(FrameQueue *f)
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{
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return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size];
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}
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static Frame *frame_queue_peek_last(FrameQueue *f)
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{
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return &f->queue[f->rindex];
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}
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static Frame *frame_queue_peek_writable(FrameQueue *f)
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{
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/* wait until we have space to put a new frame */
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SDL_LockMutex(f->mutex);
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while (f->size >= f->max_size &&
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!f->pktq->abort_request) {
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SDL_CondWait(f->cond, f->mutex);
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}
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SDL_UnlockMutex(f->mutex);
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if (f->pktq->abort_request)
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return NULL;
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return &f->queue[f->windex];
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}
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static void frame_queue_push(FrameQueue *f)
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{
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if (++f->windex == f->max_size)
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f->windex = 0;
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SDL_LockMutex(f->mutex);
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f->size++;
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SDL_UnlockMutex(f->mutex);
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}
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static void frame_queue_next(FrameQueue *f)
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{
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if (f->keep_last && !f->rindex_shown) {
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f->rindex_shown = 1;
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return;
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}
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frame_queue_unref_item(&f->queue[f->rindex]);
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if (++f->rindex == f->max_size)
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f->rindex = 0;
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SDL_LockMutex(f->mutex);
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f->size--;
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SDL_CondSignal(f->cond);
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SDL_UnlockMutex(f->mutex);
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}
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/* jump back to the previous frame if available by resetting rindex_shown */
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static int frame_queue_prev(FrameQueue *f)
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{
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int ret = f->rindex_shown;
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f->rindex_shown = 0;
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return ret;
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}
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/* return the number of undisplayed frames in the queue */
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static int frame_queue_nb_remaining(FrameQueue *f)
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{
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return f->size - f->rindex_shown;
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}
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static inline void fill_rectangle(SDL_Surface *screen,
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int x, int y, int w, int h, int color, int update)
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{
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@ -795,7 +915,7 @@ static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw,
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}
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}
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static void free_picture(VideoPicture *vp)
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static void free_picture(Frame *vp)
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{
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if (vp->bmp) {
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SDL_FreeYUVOverlay(vp->bmp);
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@ -803,11 +923,6 @@ static void free_picture(VideoPicture *vp)
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}
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}
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static void free_subpicture(SubPicture *sp)
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{
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avsubtitle_free(&sp->sub);
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}
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static void calculate_display_rect(SDL_Rect *rect,
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int scr_xleft, int scr_ytop, int scr_width, int scr_height,
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int pic_width, int pic_height, AVRational pic_sar)
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@ -841,17 +956,17 @@ static void calculate_display_rect(SDL_Rect *rect,
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static void video_image_display(VideoState *is)
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{
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VideoPicture *vp;
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SubPicture *sp;
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Frame *vp;
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Frame *sp;
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AVPicture pict;
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SDL_Rect rect;
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int i;
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vp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown) % VIDEO_PICTURE_QUEUE_SIZE];
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vp = frame_queue_peek(&is->pictq);
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if (vp->bmp) {
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if (is->subtitle_st) {
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if (is->subpq_size > 0) {
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sp = &is->subpq[is->subpq_rindex];
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if (frame_queue_nb_remaining(&is->subpq) > 0) {
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sp = frame_queue_peek(&is->subpq);
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if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
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SDL_LockYUVOverlay (vp->bmp);
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@ -1033,7 +1148,6 @@ static void video_audio_display(VideoState *s)
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static void stream_close(VideoState *is)
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{
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int i;
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/* XXX: use a special url_shutdown call to abort parse cleanly */
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is->abort_request = 1;
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SDL_WaitThread(is->read_tid, NULL);
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@ -1042,14 +1156,8 @@ static void stream_close(VideoState *is)
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packet_queue_destroy(&is->subtitleq);
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/* free all pictures */
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for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
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free_picture(&is->pictq[i]);
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for (i = 0; i < SUBPICTURE_QUEUE_SIZE; i++)
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free_subpicture(&is->subpq[i]);
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SDL_DestroyMutex(is->pictq_mutex);
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SDL_DestroyCond(is->pictq_cond);
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SDL_DestroyMutex(is->subpq_mutex);
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SDL_DestroyCond(is->subpq_cond);
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frame_queue_destory(&is->pictq);
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frame_queue_destory(&is->subpq);
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SDL_DestroyCond(is->continue_read_thread);
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#if !CONFIG_AVFILTER
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sws_freeContext(is->img_convert_ctx);
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@ -1088,7 +1196,7 @@ static void set_default_window_size(int width, int height, AVRational sar)
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default_height = rect.h;
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}
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static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp)
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static int video_open(VideoState *is, int force_set_video_mode, Frame *vp)
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{
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int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
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int w,h;
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@ -1308,7 +1416,7 @@ static double compute_target_delay(double delay, VideoState *is)
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return delay;
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}
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static double vp_duration(VideoState *is, VideoPicture *vp, VideoPicture *nextvp) {
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static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) {
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if (vp->serial == nextvp->serial) {
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double duration = nextvp->pts - vp->pts;
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if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)
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@ -1320,33 +1428,6 @@ static double vp_duration(VideoState *is, VideoPicture *vp, VideoPicture *nextvp
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}
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}
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/* return the number of undisplayed pictures in the queue */
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static int pictq_nb_remaining(VideoState *is) {
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return is->pictq_size - is->pictq_rindex_shown;
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}
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/* jump back to the previous picture if available by resetting rindex_shown */
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static int pictq_prev_picture(VideoState *is) {
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int ret = is->pictq_rindex_shown;
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is->pictq_rindex_shown = 0;
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return ret;
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}
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static void pictq_next_picture(VideoState *is) {
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if (!is->pictq_rindex_shown) {
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is->pictq_rindex_shown = 1;
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return;
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}
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/* update queue size and signal for next picture */
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if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
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is->pictq_rindex = 0;
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SDL_LockMutex(is->pictq_mutex);
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is->pictq_size--;
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SDL_CondSignal(is->pictq_cond);
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SDL_UnlockMutex(is->pictq_mutex);
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}
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static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
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/* update current video pts */
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set_clock(&is->vidclk, pts, serial);
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@ -1360,7 +1441,7 @@ static void video_refresh(void *opaque, double *remaining_time)
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VideoState *is = opaque;
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double time;
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SubPicture *sp, *sp2;
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Frame *sp, *sp2;
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if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
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check_external_clock_speed(is);
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@ -1377,20 +1458,20 @@ static void video_refresh(void *opaque, double *remaining_time)
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if (is->video_st) {
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int redisplay = 0;
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if (is->force_refresh)
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redisplay = pictq_prev_picture(is);
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redisplay = frame_queue_prev(&is->pictq);
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retry:
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if (pictq_nb_remaining(is) == 0) {
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if (frame_queue_nb_remaining(&is->pictq) == 0) {
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// nothing to do, no picture to display in the queue
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} else {
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double last_duration, duration, delay;
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VideoPicture *vp, *lastvp;
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Frame *vp, *lastvp;
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/* dequeue the picture */
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lastvp = &is->pictq[is->pictq_rindex];
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vp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown) % VIDEO_PICTURE_QUEUE_SIZE];
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lastvp = frame_queue_peek_last(&is->pictq);
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vp = frame_queue_peek(&is->pictq);
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if (vp->serial != is->videoq.serial) {
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pictq_next_picture(is);
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frame_queue_next(&is->pictq);
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is->video_current_pos = -1;
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redisplay = 0;
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goto retry;
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@ -1419,29 +1500,29 @@ retry:
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if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
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is->frame_timer = time;
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SDL_LockMutex(is->pictq_mutex);
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SDL_LockMutex(is->pictq.mutex);
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if (!redisplay && !isnan(vp->pts))
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update_video_pts(is, vp->pts, vp->pos, vp->serial);
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SDL_UnlockMutex(is->pictq_mutex);
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SDL_UnlockMutex(is->pictq.mutex);
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if (pictq_nb_remaining(is) > 1) {
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VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + is->pictq_rindex_shown + 1) % VIDEO_PICTURE_QUEUE_SIZE];
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if (frame_queue_nb_remaining(&is->pictq) > 1) {
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Frame *nextvp = frame_queue_peek_next(&is->pictq);
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duration = vp_duration(is, vp, nextvp);
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if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
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if (!redisplay)
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is->frame_drops_late++;
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pictq_next_picture(is);
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frame_queue_next(&is->pictq);
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redisplay = 0;
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goto retry;
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}
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}
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if (is->subtitle_st) {
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while (is->subpq_size > 0) {
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sp = &is->subpq[is->subpq_rindex];
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while (frame_queue_nb_remaining(&is->subpq) > 0) {
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sp = frame_queue_peek(&is->subpq);
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if (is->subpq_size > 1)
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sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
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if (frame_queue_nb_remaining(&is->subpq) > 1)
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sp2 = frame_queue_peek_next(&is->subpq);
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else
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sp2 = NULL;
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@ -1449,16 +1530,7 @@ retry:
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|| (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
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|| (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
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{
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free_subpicture(sp);
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/* update queue size and signal for next picture */
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if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
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is->subpq_rindex = 0;
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SDL_LockMutex(is->subpq_mutex);
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is->subpq_size--;
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SDL_CondSignal(is->subpq_cond);
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SDL_UnlockMutex(is->subpq_mutex);
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frame_queue_next(&is->subpq);
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} else {
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break;
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}
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@ -1470,7 +1542,7 @@ display:
|
||||
if (!display_disable && is->show_mode == SHOW_MODE_VIDEO)
|
||||
video_display(is);
|
||||
|
||||
pictq_next_picture(is);
|
||||
frame_queue_next(&is->pictq);
|
||||
|
||||
if (is->step && !is->paused)
|
||||
stream_toggle_pause(is);
|
||||
@ -1522,10 +1594,10 @@ display:
|
||||
potential locking problems */
|
||||
static void alloc_picture(VideoState *is)
|
||||
{
|
||||
VideoPicture *vp;
|
||||
Frame *vp;
|
||||
int64_t bufferdiff;
|
||||
|
||||
vp = &is->pictq[is->pictq_windex];
|
||||
vp = &is->pictq.queue[is->pictq.windex];
|
||||
|
||||
free_picture(vp);
|
||||
|
||||
@ -1545,10 +1617,10 @@ static void alloc_picture(VideoState *is)
|
||||
do_exit(is);
|
||||
}
|
||||
|
||||
SDL_LockMutex(is->pictq_mutex);
|
||||
SDL_LockMutex(is->pictq.mutex);
|
||||
vp->allocated = 1;
|
||||
SDL_CondSignal(is->pictq_cond);
|
||||
SDL_UnlockMutex(is->pictq_mutex);
|
||||
SDL_CondSignal(is->pictq.cond);
|
||||
SDL_UnlockMutex(is->pictq.mutex);
|
||||
}
|
||||
|
||||
static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
|
||||
@ -1571,27 +1643,16 @@ static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
|
||||
|
||||
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial)
|
||||
{
|
||||
VideoPicture *vp;
|
||||
Frame *vp;
|
||||
|
||||
#if defined(DEBUG_SYNC) && 0
|
||||
printf("frame_type=%c pts=%0.3f\n",
|
||||
av_get_picture_type_char(src_frame->pict_type), pts);
|
||||
#endif
|
||||
|
||||
/* wait until we have space to put a new picture */
|
||||
SDL_LockMutex(is->pictq_mutex);
|
||||
|
||||
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)
|
||||
if (!(vp = frame_queue_peek_writable(&is->pictq)))
|
||||
return -1;
|
||||
|
||||
vp = &is->pictq[is->pictq_windex];
|
||||
|
||||
vp->sar = src_frame->sample_aspect_ratio;
|
||||
|
||||
/* alloc or resize hardware picture buffer */
|
||||
@ -1612,17 +1673,17 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double
|
||||
SDL_PushEvent(&event);
|
||||
|
||||
/* wait until the picture is allocated */
|
||||
SDL_LockMutex(is->pictq_mutex);
|
||||
SDL_LockMutex(is->pictq.mutex);
|
||||
while (!vp->allocated && !is->videoq.abort_request) {
|
||||
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
||||
SDL_CondWait(is->pictq.cond, is->pictq.mutex);
|
||||
}
|
||||
/* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
|
||||
if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
|
||||
while (!vp->allocated && !is->abort_request) {
|
||||
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
||||
SDL_CondWait(is->pictq.cond, is->pictq.mutex);
|
||||
}
|
||||
}
|
||||
SDL_UnlockMutex(is->pictq_mutex);
|
||||
SDL_UnlockMutex(is->pictq.mutex);
|
||||
|
||||
if (is->videoq.abort_request)
|
||||
return -1;
|
||||
@ -1670,11 +1731,7 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double
|
||||
vp->serial = serial;
|
||||
|
||||
/* now we can update the picture count */
|
||||
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
|
||||
is->pictq_windex = 0;
|
||||
SDL_LockMutex(is->pictq_mutex);
|
||||
is->pictq_size++;
|
||||
SDL_UnlockMutex(is->pictq_mutex);
|
||||
frame_queue_push(&is->pictq);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -2051,7 +2108,7 @@ static int video_thread(void *arg)
|
||||
static int subtitle_thread(void *arg)
|
||||
{
|
||||
VideoState *is = arg;
|
||||
SubPicture *sp;
|
||||
Frame *sp;
|
||||
AVPacket pkt1, *pkt = &pkt1;
|
||||
int got_subtitle;
|
||||
int serial;
|
||||
@ -2070,18 +2127,10 @@ static int subtitle_thread(void *arg)
|
||||
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)
|
||||
if (!(sp = frame_queue_peek_writable(&is->subpq)))
|
||||
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;
|
||||
@ -2109,11 +2158,7 @@ static int subtitle_thread(void *arg)
|
||||
}
|
||||
|
||||
/* 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);
|
||||
frame_queue_push(&is->subpq);
|
||||
} else if (got_subtitle) {
|
||||
avsubtitle_free(&sp->sub);
|
||||
}
|
||||
@ -2700,9 +2745,7 @@ static void stream_component_close(VideoState *is, int stream_index)
|
||||
|
||||
/* 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);
|
||||
frame_queue_signal(&is->pictq);
|
||||
|
||||
SDL_WaitThread(is->video_tid, NULL);
|
||||
|
||||
@ -2713,9 +2756,7 @@ static void stream_component_close(VideoState *is, int stream_index)
|
||||
|
||||
/* note: we also signal this mutex to make sure we deblock the
|
||||
video thread in all cases */
|
||||
SDL_LockMutex(is->subpq_mutex);
|
||||
SDL_CondSignal(is->subpq_cond);
|
||||
SDL_UnlockMutex(is->subpq_mutex);
|
||||
frame_queue_signal(&is->subpq);
|
||||
|
||||
SDL_WaitThread(is->subtitle_tid, NULL);
|
||||
|
||||
@ -2992,7 +3033,7 @@ static int read_thread(void *arg)
|
||||
}
|
||||
if (!is->paused &&
|
||||
(!is->audio_st || is->audio_finished == is->audioq.serial) &&
|
||||
(!is->video_st || (is->video_finished == is->videoq.serial && pictq_nb_remaining(is) == 0))) {
|
||||
(!is->video_st || (is->video_finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {
|
||||
if (loop != 1 && (!loop || --loop)) {
|
||||
stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
|
||||
} else if (autoexit) {
|
||||
@ -3082,11 +3123,10 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
|
||||
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();
|
||||
if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0)
|
||||
goto fail;
|
||||
if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)
|
||||
goto fail;
|
||||
|
||||
packet_queue_init(&is->videoq);
|
||||
packet_queue_init(&is->audioq);
|
||||
@ -3102,7 +3142,8 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
|
||||
is->av_sync_type = av_sync_type;
|
||||
is->read_tid = SDL_CreateThread(read_thread, is);
|
||||
if (!is->read_tid) {
|
||||
av_free(is);
|
||||
fail:
|
||||
stream_close(is);
|
||||
return NULL;
|
||||
}
|
||||
return is;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user