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ffmpeg
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ffplay: implement separete audio decoder thread 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2013-10-19 14:34:28 +02:00
parent d1970929b5
commit 631ac655c0
1 changed files with 153 additions and 112 deletions
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265
ffplay.c
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@ -121,7 +121,8 @@ typedef struct PacketQueue {
#define VIDEO_PICTURE_QUEUE_SIZE 3
#define SUBPICTURE_QUEUE_SIZE 16
#define FRAME_QUEUE_SIZE FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)
#define SAMPLE_QUEUE_SIZE 9
#define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE))
typedef struct AudioParams {
int freq;
@ -196,6 +197,7 @@ typedef struct Decoder {
typedef struct VideoState {
SDL_Thread *read_tid;
SDL_Thread *video_tid;
SDL_Thread *audio_tid;
AVInputFormat *iformat;
int no_background;
int abort_request;
@ -217,6 +219,7 @@ typedef struct VideoState {
FrameQueue pictq;
FrameQueue subpq;
FrameQueue sampq;
Decoder auddec;
Decoder viddec;
@ -242,8 +245,6 @@ typedef struct VideoState {
unsigned int audio_buf1_size;
int audio_buf_index; /* in bytes */
int audio_write_buf_size;
int audio_buf_frames_pending;
int audio_last_serial;
struct AudioParams audio_src;
#if CONFIG_AVFILTER
struct AudioParams audio_filter_src;
@ -252,7 +253,6 @@ typedef struct VideoState {
struct SwrContext *swr_ctx;
int frame_drops_early;
int frame_drops_late;
AVFrame *frame;
enum ShowMode {
SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
@ -712,12 +712,29 @@ static Frame *frame_queue_peek_writable(FrameQueue *f)
return &f->queue[f->windex];
}
static Frame *frame_queue_peek_readable(FrameQueue *f)
{
/* wait until we have a readable a new frame */
SDL_LockMutex(f->mutex);
while (f->size - f->rindex_shown <= 0 &&
!f->pktq->abort_request) {
SDL_CondWait(f->cond, f->mutex);
}
SDL_UnlockMutex(f->mutex);
if (f->pktq->abort_request)
return NULL;
return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
}
static void frame_queue_push(FrameQueue *f)
{
if (++f->windex == f->max_size)
f->windex = 0;
SDL_LockMutex(f->mutex);
f->size++;
SDL_CondSignal(f->cond);
SDL_UnlockMutex(f->mutex);
}
@ -1280,6 +1297,7 @@ static void stream_close(VideoState *is)
/* free all pictures */
frame_queue_destory(&is->pictq);
frame_queue_destory(&is->sampq);
frame_queue_destory(&is->subpq);
SDL_DestroyCond(is->continue_read_thread);
#if !CONFIG_AVFILTER
@ -2100,6 +2118,93 @@ end:
}
#endif /* CONFIG_AVFILTER */
static int audio_thread(void *arg)
{
VideoState *is = arg;
AVFrame *frame = av_frame_alloc();
Frame *af;
#if CONFIG_AVFILTER
int last_serial = -1;
int64_t dec_channel_layout;
int reconfigure;
#endif
int got_frame = 0;
AVRational tb;
int ret = 0;
if (!frame)
return AVERROR(ENOMEM);
do {
if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0)
goto the_end;
if (got_frame) {
tb = (AVRational){1, frame->sample_rate};
#if CONFIG_AVFILTER
dec_channel_layout = get_valid_channel_layout(frame->channel_layout, av_frame_get_channels(frame));
reconfigure =
cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
frame->format, av_frame_get_channels(frame)) ||
is->audio_filter_src.channel_layout != dec_channel_layout ||
is->audio_filter_src.freq != frame->sample_rate ||
is->auddec.pkt_serial != last_serial;
if (reconfigure) {
char buf1[1024], buf2[1024];
av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
av_log(NULL, AV_LOG_DEBUG,
"Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",
is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial,
frame->sample_rate, av_frame_get_channels(frame), av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial);
is->audio_filter_src.fmt = frame->format;
is->audio_filter_src.channels = av_frame_get_channels(frame);
is->audio_filter_src.channel_layout = dec_channel_layout;
is->audio_filter_src.freq = frame->sample_rate;
last_serial = is->auddec.pkt_serial;
if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
goto the_end;
}
if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0)
goto the_end;
while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) {
tb = is->out_audio_filter->inputs[0]->time_base;
#endif
if (!(af = frame_queue_peek_writable(&is->sampq)))
goto the_end;
af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
af->pos = av_frame_get_pkt_pos(frame);
af->serial = is->auddec.pkt_serial;
af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate});
av_frame_move_ref(af->frame, frame);
frame_queue_push(&is->sampq);
#if CONFIG_AVFILTER
if (is->audioq.serial != is->auddec.pkt_serial)
break;
}
if (ret == AVERROR_EOF)
is->auddec.finished = is->auddec.pkt_serial;
#endif
}
} while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF);
the_end:
#if CONFIG_AVFILTER
avfilter_graph_free(&is->agraph);
#endif
av_frame_free(&frame);
return ret;
}
static int video_thread(void *arg)
{
VideoState *is = arg;
@ -2315,135 +2420,77 @@ static int audio_decode_frame(VideoState *is)
{
int data_size, resampled_data_size;
int64_t dec_channel_layout;
int got_frame = 0;
av_unused double audio_clock0;
int wanted_nb_samples;
AVRational tb;
int ret;
int reconfigure;
if (!is->frame)
if (!(is->frame = av_frame_alloc()))
return AVERROR(ENOMEM);
for (;;) {
if (is->audioq.serial != is->auddec.pkt_serial)
is->audio_buf_frames_pending = got_frame = 0;
if (!got_frame)
av_frame_unref(is->frame);
Frame *af;
{
if (is->paused)
return -1;
while (is->audio_buf_frames_pending || got_frame) {
if (!is->audio_buf_frames_pending) {
got_frame = 0;
tb = (AVRational){1, is->frame->sample_rate};
do {
if (!(af = frame_queue_peek_readable(&is->sampq)))
return -1;
frame_queue_next(&is->sampq);
} while (af->serial != is->audioq.serial);
#if CONFIG_AVFILTER
dec_channel_layout = get_valid_channel_layout(is->frame->channel_layout, av_frame_get_channels(is->frame));
reconfigure =
cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
is->frame->format, av_frame_get_channels(is->frame)) ||
is->audio_filter_src.channel_layout != dec_channel_layout ||
is->audio_filter_src.freq != is->frame->sample_rate ||
is->auddec.pkt_serial != is->audio_last_serial;
if (reconfigure) {
char buf1[1024], buf2[1024];
av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
av_log(NULL, AV_LOG_DEBUG,
"Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",
is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, is->audio_last_serial,
is->frame->sample_rate, av_frame_get_channels(is->frame), av_get_sample_fmt_name(is->frame->format), buf2, is->auddec.pkt_serial);
is->audio_filter_src.fmt = is->frame->format;
is->audio_filter_src.channels = av_frame_get_channels(is->frame);
is->audio_filter_src.channel_layout = dec_channel_layout;
is->audio_filter_src.freq = is->frame->sample_rate;
is->audio_last_serial = is->auddec.pkt_serial;
if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
return ret;
}
if ((ret = av_buffersrc_add_frame(is->in_audio_filter, is->frame)) < 0)
return ret;
#endif
}
#if CONFIG_AVFILTER
if ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, is->frame, 0)) < 0) {
if (ret == AVERROR(EAGAIN)) {
is->audio_buf_frames_pending = 0;
continue;
}
if (ret == AVERROR_EOF)
is->auddec.finished = is->auddec.pkt_serial;
return ret;
}
is->audio_buf_frames_pending = 1;
tb = is->out_audio_filter->inputs[0]->time_base;
#endif
data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(is->frame),
is->frame->nb_samples,
is->frame->format, 1);
{
data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(af->frame),
af->frame->nb_samples,
af->frame->format, 1);
dec_channel_layout =
(is->frame->channel_layout && av_frame_get_channels(is->frame) == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ?
is->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(is->frame));
wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
(af->frame->channel_layout && av_frame_get_channels(af->frame) == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ?
af->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(af->frame));
wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples);
if (is->frame->format != is->audio_src.fmt ||
if (af->frame->format != is->audio_src.fmt ||
dec_channel_layout != is->audio_src.channel_layout ||
is->frame->sample_rate != is->audio_src.freq ||
(wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
af->frame->sample_rate != is->audio_src.freq ||
(wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) {
swr_free(&is->swr_ctx);
is->swr_ctx = swr_alloc_set_opts(NULL,
is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
dec_channel_layout, is->frame->format, is->frame->sample_rate,
dec_channel_layout, af->frame->format, af->frame->sample_rate,
0, NULL);
if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
av_log(NULL, AV_LOG_ERROR,
"Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), av_frame_get_channels(is->frame),
af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame),
is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
swr_free(&is->swr_ctx);
break;
return -1;
}
is->audio_src.channel_layout = dec_channel_layout;
is->audio_src.channels = av_frame_get_channels(is->frame);
is->audio_src.freq = is->frame->sample_rate;
is->audio_src.fmt = is->frame->format;
is->audio_src.channels = av_frame_get_channels(af->frame);
is->audio_src.freq = af->frame->sample_rate;
is->audio_src.fmt = af->frame->format;
}
if (is->swr_ctx) {
const uint8_t **in = (const uint8_t **)is->frame->extended_data;
const uint8_t **in = (const uint8_t **)af->frame->extended_data;
uint8_t **out = &is->audio_buf1;
int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256;
int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256;
int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
int len2;
if (out_size < 0) {
av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
break;
return -1;
}
if (wanted_nb_samples != is->frame->nb_samples) {
if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate,
wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) {
if (wanted_nb_samples != af->frame->nb_samples) {
if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate,
wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) {
av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
break;
return -1;
}
}
av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
if (!is->audio_buf1)
return AVERROR(ENOMEM);
len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples);
len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples);
if (len2 < 0) {
av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
break;
return -1;
}
if (len2 == out_count) {
av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
@ -2453,17 +2500,17 @@ static int audio_decode_frame(VideoState *is)
is->audio_buf = is->audio_buf1;
resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
} else {
is->audio_buf = is->frame->data[0];
is->audio_buf = af->frame->data[0];
resampled_data_size = data_size;
}
audio_clock0 = is->audio_clock;
/* update the audio clock with the pts */
if (is->frame->pts != AV_NOPTS_VALUE)
is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate;
if (!isnan(af->pts))
is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate;
else
is->audio_clock = NAN;
is->audio_clock_serial = is->auddec.pkt_serial;
is->audio_clock_serial = af->serial;
#ifdef DEBUG
{
static double last_clock;
@ -2475,12 +2522,6 @@ static int audio_decode_frame(VideoState *is)
#endif
return resampled_data_size;
}
if ((got_frame = decoder_decode_frame(&is->auddec, is->frame, NULL)) < 0)
return -1;
if (is->auddec.flushed)
is->audio_buf_frames_pending = 0;
}
}
@ -2707,6 +2748,7 @@ static int stream_component_open(VideoState *is, int stream_index)
is->auddec.start_pts = is->audio_st->start_time;
is->auddec.start_pts_tb = is->audio_st->time_base;
}
is->audio_tid = SDL_CreateThread(audio_thread, is);
SDL_PauseAudio(0);
break;
case AVMEDIA_TYPE_VIDEO:
@ -2750,6 +2792,8 @@ static void stream_component_close(VideoState *is, int stream_index)
packet_queue_abort(&is->audioq);
SDL_CloseAudio();
frame_queue_signal(&is->sampq);
SDL_WaitThread(is->audio_tid, NULL);
decoder_destroy(&is->auddec);
packet_queue_flush(&is->audioq);
@ -2757,7 +2801,6 @@ static void stream_component_close(VideoState *is, int stream_index)
av_freep(&is->audio_buf1);
is->audio_buf1_size = 0;
is->audio_buf = NULL;
av_frame_free(&is->frame);
if (is->rdft) {
av_rdft_end(is->rdft);
@ -2765,9 +2808,6 @@ static void stream_component_close(VideoState *is, int stream_index)
is->rdft = NULL;
is->rdft_bits = 0;
}
#if CONFIG_AVFILTER
avfilter_graph_free(&is->agraph);
#endif
break;
case AVMEDIA_TYPE_VIDEO:
packet_queue_abort(&is->videoq);
@ -3065,7 +3105,7 @@ static int read_thread(void *arg)
continue;
}
if (!is->paused &&
(!is->audio_st || is->auddec.finished == is->audioq.serial) &&
(!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&
(!is->video_st || (is->viddec.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);
@ -3160,6 +3200,8 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
goto fail;
if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)
goto fail;
if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0)
goto fail;
packet_queue_init(&is->videoq);
packet_queue_init(&is->audioq);
@ -3171,7 +3213,6 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
init_clock(&is->audclk, &is->audioq.serial);
init_clock(&is->extclk, &is->extclk.serial);
is->audio_clock_serial = -1;
is->audio_last_serial = -1;
is->av_sync_type = av_sync_type;
is->read_tid = SDL_CreateThread(read_thread, is);
if (!is->read_tid) {
@ -3421,8 +3462,8 @@ static void event_loop(VideoState *cur_stream)
pos = -1;
if (pos < 0 && cur_stream->video_stream >= 0)
pos = frame_queue_last_pos(&cur_stream->pictq);
if (pos < 0 && cur_stream->audio_stream >= 0 && cur_stream->frame)
pos = av_frame_get_pkt_pos(cur_stream->frame);
if (pos < 0 && cur_stream->audio_stream >= 0)
pos = frame_queue_last_pos(&cur_stream->sampq);
if (pos < 0)
pos = avio_tell(cur_stream->ic->pb);
if (cur_stream->ic->bit_rate)