#include "libavcodec/audioconvert.h"
#include "libavutil/opt.h"
#include "libavcodec/avfft.h"
+#include "libswresample/swresample.h"
#if CONFIG_AVFILTER
# include "libavfilter/avcodec.h"
/* no AV correction is done if too big error */
#define AV_NOSYNC_THRESHOLD 10.0
-#define FRAME_SKIP_FACTOR 0.05
-
/* maximum audio speed change to get correct sync */
#define SAMPLE_CORRECTION_PERCENT_MAX 10
typedef struct VideoPicture {
double pts; ///<presentation time stamp for this picture
- double target_clock; ///<av_gettime() time at which this should be displayed ideally
double duration; ///<expected duration of the frame
int64_t pos; ///<byte position in file
+ int skip;
SDL_Overlay *bmp;
int width, height; /* source height & width */
int allocated;
+ int reallocate;
enum PixelFormat pix_fmt;
#if CONFIG_AVFILTER
PacketQueue audioq;
int audio_hw_buf_size;
/* samples output by the codec. we reserve more space for avsync
- compensation */
- DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
- DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
+ compensation, resampling and format conversion */
+ DECLARE_ALIGNED(16,uint8_t,audio_buf1)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
+ DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
uint8_t *audio_buf;
unsigned int audio_buf_size; /* in bytes */
int audio_buf_index; /* in bytes */
AVPacket audio_pkt_temp;
AVPacket audio_pkt;
enum AVSampleFormat audio_src_fmt;
- AVAudioConvert *reformat_ctx;
+ enum AVSampleFormat audio_tgt_fmt;
+ int audio_src_channels;
+ int audio_tgt_channels;
+ int64_t audio_src_channel_layout;
+ int64_t audio_tgt_channel_layout;
+ int audio_src_freq;
+ int audio_tgt_freq;
+ struct SwrContext *swr_ctx;
double audio_current_pts;
double audio_current_pts_drift;
+ int frame_drops_early;
+ int frame_drops_late;
enum ShowMode {
SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
double frame_timer;
double frame_last_pts;
- double frame_last_delay;
+ double frame_last_duration;
+ double frame_last_dropped_pts;
+ double frame_last_returned_time;
+ double frame_last_filter_delay;
+ int64_t frame_last_dropped_pos;
double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
int video_stream;
AVStream *video_st;
AVFilterContext *out_video_filter; ///<the last filter in the video chain
#endif
- float skip_frames;
- float skip_frames_index;
int refresh;
} VideoState;
static int loop=1;
static int framedrop=-1;
static enum ShowMode show_mode = SHOW_MODE_NONE;
+static const char *audio_codec_name;
+static const char *subtitle_codec_name;
+static const char *video_codec_name;
static int rdftspeed=20;
#if CONFIG_AVFILTER
nb_freq= 1<<(rdft_bits-1);
/* compute display index : center on currently output samples */
- channels = s->audio_st->codec->channels;
+ channels = s->audio_tgt_channels;
nb_display_channels = channels;
if (!s->paused) {
int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
the last buffer computation */
if (audio_callback_time) {
time_diff = av_gettime() - audio_callback_time;
- delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
+ delay -= (time_diff * s->audio_tgt_freq) / 1000000;
}
delay += 2*data_used;
if(screen && is->width == screen->w && screen->w == w
&& is->height== screen->h && screen->h == h)
return 0;
-
-#ifndef __APPLE__
screen = SDL_SetVideoMode(w, h, 0, flags);
-#else
- /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
- screen = SDL_SetVideoMode(w, h, 24, flags);
-#endif
if (!screen) {
fprintf(stderr, "SDL: could not set video mode - exiting\n");
do_exit(is);
is->paused = !is->paused;
}
-static double compute_target_time(double frame_current_pts, VideoState *is)
+static double compute_target_delay(double delay, VideoState *is)
{
- double delay, sync_threshold, diff;
-
- /* compute nominal delay */
- delay = frame_current_pts - is->frame_last_pts;
- if (delay <= 0 || delay >= 10.0) {
- /* if incorrect delay, use previous one */
- delay = is->frame_last_delay;
- } else {
- is->frame_last_delay = delay;
- }
- is->frame_last_pts = frame_current_pts;
+ double sync_threshold, diff;
/* update delay to follow master synchronisation source */
if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
delay = 2 * delay;
}
}
- is->frame_timer += delay;
- av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
- delay, frame_current_pts, -diff);
+ av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
+ delay, -diff);
- return is->frame_timer;
+ return delay;
+}
+
+static void pictq_next_picture(VideoState *is) {
+ /* update queue size and signal for next picture */
+ if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
+ is->pictq_rindex = 0;
+
+ SDL_LockMutex(is->pictq_mutex);
+ is->pictq_size--;
+ SDL_CondSignal(is->pictq_cond);
+ SDL_UnlockMutex(is->pictq_mutex);
+}
+
+static void update_video_pts(VideoState *is, double pts, int64_t pos) {
+ double time = av_gettime() / 1000000.0;
+ /* update current video pts */
+ is->video_current_pts = pts;
+ is->video_current_pts_drift = is->video_current_pts - time;
+ is->video_current_pos = pos;
+ is->frame_last_pts = pts;
}
/* called to display each frame */
{
VideoState *is = opaque;
VideoPicture *vp;
+ double time;
SubPicture *sp, *sp2;
if (is->video_st) {
retry:
if (is->pictq_size == 0) {
+ SDL_LockMutex(is->pictq_mutex);
+ if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
+ update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
+ is->frame_last_dropped_pts = AV_NOPTS_VALUE;
+ }
+ SDL_UnlockMutex(is->pictq_mutex);
//nothing to do, no picture to display in the que
} else {
- double time= av_gettime()/1000000.0;
- double next_target;
+ double last_duration, duration, delay;
/* dequeue the picture */
vp = &is->pictq[is->pictq_rindex];
- if(time < vp->target_clock)
+ if (vp->skip) {
+ pictq_next_picture(is);
+ goto retry;
+ }
+
+ /* compute nominal last_duration */
+ last_duration = vp->pts - is->frame_last_pts;
+ if (last_duration > 0 && last_duration < 10.0) {
+ /* if duration of the last frame was sane, update last_duration in video state */
+ is->frame_last_duration = last_duration;
+ }
+ delay = compute_target_delay(is->frame_last_duration, is);
+
+ time= av_gettime()/1000000.0;
+ if(time < is->frame_timer + delay)
return;
- /* update current video pts */
- is->video_current_pts = vp->pts;
- is->video_current_pts_drift = is->video_current_pts - time;
- is->video_current_pos = vp->pos;
- if(is->pictq_size > 1){
- VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
- assert(nextvp->target_clock >= vp->target_clock);
- next_target= nextvp->target_clock;
- }else{
- next_target= vp->target_clock + vp->duration;
+
+ if (delay > 0)
+ is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
+
+ SDL_LockMutex(is->pictq_mutex);
+ update_video_pts(is, vp->pts, vp->pos);
+ SDL_UnlockMutex(is->pictq_mutex);
+
+ if(is->pictq_size > 1) {
+ VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
+ duration = nextvp->pts - vp->pts; // More accurate this way, 1/time_base is often not reflecting FPS
+ } else {
+ duration = vp->duration;
}
- if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
- is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
+
+ if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
if(is->pictq_size > 1){
- /* update queue size and signal for next picture */
- if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
- is->pictq_rindex = 0;
-
- SDL_LockMutex(is->pictq_mutex);
- is->pictq_size--;
- SDL_CondSignal(is->pictq_cond);
- SDL_UnlockMutex(is->pictq_mutex);
+ is->frame_drops_late++;
+ pictq_next_picture(is);
goto retry;
}
}
if (!display_disable)
video_display(is);
- /* update queue size and signal for next picture */
- if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
- is->pictq_rindex = 0;
-
- SDL_LockMutex(is->pictq_mutex);
- is->pictq_size--;
- SDL_CondSignal(is->pictq_cond);
- SDL_UnlockMutex(is->pictq_mutex);
+ pictq_next_picture(is);
}
} else if (is->audio_st) {
/* draw the next audio frame */
av_diff = 0;
if (is->audio_st && is->video_st)
av_diff = get_audio_clock(is) - get_video_clock(is);
- printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
+ printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
get_master_clock(is),
av_diff,
- FFMAX(is->skip_frames-1, 0),
+ is->frame_drops_early + is->frame_drops_late,
aqsize / 1024,
vqsize / 1024,
sqsize,
/* wait until we have space to put a new picture */
SDL_LockMutex(is->pictq_mutex);
- if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
- is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
-
while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
!is->videoq.abort_request) {
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
vp->duration = frame_delay;
/* alloc or resize hardware picture buffer */
- if (!vp->bmp ||
+ if (!vp->bmp || vp->reallocate ||
#if CONFIG_AVFILTER
vp->width != is->out_video_filter->inputs[0]->w ||
vp->height != is->out_video_filter->inputs[0]->h) {
#endif
SDL_Event event;
- vp->allocated = 0;
+ vp->allocated = 0;
+ vp->reallocate = 0;
/* the allocation must be done in the main thread to avoid
locking problems */
vp->pts = pts;
vp->pos = pos;
+ vp->skip = 0;
/* now we can update the picture count */
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
is->pictq_windex = 0;
SDL_LockMutex(is->pictq_mutex);
- vp->target_clock= compute_target_time(vp->pts, is);
-
is->pictq_size++;
SDL_UnlockMutex(is->pictq_mutex);
}
SDL_LockMutex(is->pictq_mutex);
//Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
- is->pictq[i].target_clock= 0;
+ is->pictq[i].skip = 1;
}
while (is->pictq_size && !is->videoq.abort_request) {
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
}
is->video_current_pos = -1;
- SDL_UnlockMutex(is->pictq_mutex);
-
is->frame_last_pts = AV_NOPTS_VALUE;
- is->frame_last_delay = 0;
+ is->frame_last_duration = 0;
is->frame_timer = (double)av_gettime() / 1000000.0;
- is->skip_frames = 1;
- is->skip_frames_index = 0;
+ is->frame_last_dropped_pts = AV_NOPTS_VALUE;
+ SDL_UnlockMutex(is->pictq_mutex);
+
return 0;
}
avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
if (got_picture) {
+ int ret = 1;
+
if (decoder_reorder_pts == -1) {
*pts = frame->best_effort_timestamp;
} else if (decoder_reorder_pts) {
*pts = 0;
}
- is->skip_frames_index += 1;
- if(is->skip_frames_index >= is->skip_frames){
- is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
- return 1;
+ if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
+ (framedrop>0 || (framedrop && is->audio_st))) {
+ SDL_LockMutex(is->pictq_mutex);
+ if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
+ double clockdiff = get_video_clock(is) - get_master_clock(is);
+ double dpts = av_q2d(is->video_st->time_base) * *pts;
+ double ptsdiff = dpts - is->frame_last_pts;
+ if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
+ ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
+ clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
+ is->frame_last_dropped_pos = pkt->pos;
+ is->frame_last_dropped_pts = dpts;
+ is->frame_drops_early++;
+ ret = 0;
+ }
+ }
+ SDL_UnlockMutex(is->pictq_mutex);
}
+ if (ret)
+ is->frame_last_returned_time = av_gettime() / 1000000.0;
+
+ return ret;
}
return 0;
}
if (ret < 0) goto the_end;
+ is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
+ if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
+ is->frame_last_filter_delay = 0;
+
#if CONFIG_AVFILTER
if (!picref)
continue;
int n, samples_size;
double ref_clock;
- n = 2 * is->audio_st->codec->channels;
+ n = av_get_bytes_per_sample(is->audio_tgt_fmt) * is->audio_tgt_channels;
samples_size = samples_size1;
/* if not master, then we try to remove or add samples to correct the clock */
avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
if (fabs(avg_diff) >= is->audio_diff_threshold) {
- wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
+ wanted_size = samples_size + ((int)(diff * is->audio_tgt_freq) * n);
nb_samples = samples_size / n;
min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
if (wanted_size < min_size)
wanted_size = min_size;
- else if (wanted_size > max_size)
- wanted_size = max_size;
+ else if (wanted_size > FFMIN3(max_size, sizeof(is->audio_buf1), sizeof(is->audio_buf2)))
+ wanted_size = FFMIN3(max_size, sizeof(is->audio_buf1), sizeof(is->audio_buf2));
/* add or remove samples to correction the synchro */
if (wanted_size < samples_size) {
AVPacket *pkt_temp = &is->audio_pkt_temp;
AVPacket *pkt = &is->audio_pkt;
AVCodecContext *dec= is->audio_st->codec;
- int n, len1, data_size;
+ int len1, len2, data_size, resampled_data_size;
+ int64_t dec_channel_layout;
double pts;
+ int new_packet = 0;
+ int flush_complete = 0;
for(;;) {
/* NOTE: the audio packet can contain several frames */
- while (pkt_temp->size > 0) {
+ while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
+ if (flush_complete)
+ break;
+ new_packet = 0;
data_size = sizeof(is->audio_buf1);
len1 = avcodec_decode_audio3(dec,
(int16_t *)is->audio_buf1, &data_size,
pkt_temp->data += len1;
pkt_temp->size -= len1;
- if (data_size <= 0)
+
+ if (data_size <= 0) {
+ /* stop sending empty packets if the decoder is finished */
+ if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
+ flush_complete = 1;
continue;
+ }
- if (dec->sample_fmt != is->audio_src_fmt) {
- if (is->reformat_ctx)
- av_audio_convert_free(is->reformat_ctx);
- is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
- dec->sample_fmt, 1, NULL, 0);
- if (!is->reformat_ctx) {
- fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
+ dec_channel_layout = (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ? dec->channel_layout : av_get_default_channel_layout(dec->channels);
+
+ if (dec->sample_fmt != is->audio_src_fmt || dec_channel_layout != is->audio_src_channel_layout || dec->sample_rate != is->audio_src_freq) {
+ if (is->swr_ctx)
+ swr_free(&is->swr_ctx);
+ is->swr_ctx = swr_alloc2(NULL, is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
+ dec_channel_layout, dec->sample_fmt, dec->sample_rate,
+ 0, NULL);
+ if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
+ fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
+ dec->sample_rate,
av_get_sample_fmt_name(dec->sample_fmt),
- av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
- break;
+ dec->channels,
+ is->audio_tgt_freq,
+ av_get_sample_fmt_name(is->audio_tgt_fmt),
+ is->audio_tgt_channels);
+ break;
}
- is->audio_src_fmt= dec->sample_fmt;
+ is->audio_src_channel_layout = dec_channel_layout;
+ is->audio_src_channels = dec->channels;
+ is->audio_src_freq = dec->sample_rate;
+ is->audio_src_fmt = dec->sample_fmt;
}
- if (is->reformat_ctx) {
- const void *ibuf[6]= {is->audio_buf1};
- void *obuf[6]= {is->audio_buf2};
- int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
- int ostride[6]= {2};
- int len= data_size/istride[0];
- if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
- printf("av_audio_convert() failed\n");
+ resampled_data_size = data_size;
+ if (is->swr_ctx) {
+ const uint8_t *in[] = {is->audio_buf1};
+ uint8_t *out[] = {is->audio_buf2};
+ len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
+ in, data_size / dec->channels / av_get_bytes_per_sample(dec->sample_fmt));
+ if (len2 < 0) {
+ fprintf(stderr, "audio_resample() failed\n");
break;
}
- is->audio_buf= is->audio_buf2;
- /* FIXME: existing code assume that data_size equals framesize*channels*2
- remove this legacy cruft */
- data_size= len*2;
- }else{
+ if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
+ fprintf(stderr, "warning: audio buffer is probably too small\n");
+ swr_init(is->swr_ctx);
+ }
+ is->audio_buf = is->audio_buf2;
+ resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
+ } else {
is->audio_buf= is->audio_buf1;
}
/* if no pts, then compute it */
pts = is->audio_clock;
*pts_ptr = pts;
- n = 2 * dec->channels;
- is->audio_clock += (double)data_size /
- (double)(n * dec->sample_rate);
+ is->audio_clock += (double)data_size / (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
#ifdef DEBUG
{
static double last_clock;
last_clock = is->audio_clock;
}
#endif
- return data_size;
+ return resampled_data_size;
}
/* free the current packet */
}
/* read next packet */
- if (packet_queue_get(&is->audioq, pkt, 1) < 0)
+ if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
return -1;
- if(pkt->data == flush_pkt.data){
+
+ if (pkt->data == flush_pkt.data)
avcodec_flush_buffers(dec);
- continue;
- }
pkt_temp->data = pkt->data;
pkt_temp->size = pkt->size;
if (audio_size < 0) {
/* if error, just output silence */
is->audio_buf = is->audio_buf1;
- is->audio_buf_size = 1024;
+ is->audio_buf_size = 256 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
memset(is->audio_buf, 0, is->audio_buf_size);
} else {
if (is->show_mode != SHOW_MODE_VIDEO)
stream += len1;
is->audio_buf_index += len1;
}
- bytes_per_sec = is->audio_st->codec->sample_rate *
- 2 * is->audio_st->codec->channels;
+ bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
/* Let's assume the audio driver that is used by SDL has two periods. */
is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
SDL_AudioSpec wanted_spec, spec;
AVDictionary *opts;
AVDictionaryEntry *t = NULL;
+ int64_t wanted_channel_layout = 0;
if (stream_index < 0 || stream_index >= ic->nb_streams)
return -1;
opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
- /* prepare audio output */
- if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
- if (avctx->channels > 0) {
- avctx->request_channels = FFMIN(2, avctx->channels);
- } else {
- avctx->request_channels = 2;
- }
- }
-
codec = avcodec_find_decoder(avctx->codec_id);
+ switch(avctx->codec_type){
+ case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
+ case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
+ case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
+ }
if (!codec)
return -1;
if(codec->capabilities & CODEC_CAP_DR1)
avctx->flags |= CODEC_FLAG_EMU_EDGE;
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+ wanted_channel_layout = (avctx->channel_layout && avctx->channels == av_get_channel_layout_nb_channels(avctx->channels)) ? avctx->channel_layout : av_get_default_channel_layout(avctx->channels);
+ wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
+ wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
+ wanted_spec.freq = avctx->sample_rate;
+ if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
+ fprintf(stderr, "Invalid sample rate or channel count!\n");
+ return -1;
+ }
+ }
+
if (!codec ||
avcodec_open2(avctx, codec, &opts) < 0)
return -1;
/* prepare audio output */
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
- if(avctx->sample_rate <= 0 || avctx->channels <= 0){
- fprintf(stderr, "Invalid sample rate or channel count\n");
- return -1;
- }
- wanted_spec.freq = avctx->sample_rate;
wanted_spec.format = AUDIO_S16SYS;
- wanted_spec.channels = avctx->channels;
wanted_spec.silence = 0;
wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
wanted_spec.callback = sdl_audio_callback;
return -1;
}
is->audio_hw_buf_size = spec.size;
- is->audio_src_fmt= AV_SAMPLE_FMT_S16;
+ if (spec.format != AUDIO_S16SYS) {
+ fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
+ return -1;
+ }
+ if (spec.channels != wanted_spec.channels) {
+ wanted_channel_layout = av_get_default_channel_layout(spec.channels);
+ if (!wanted_channel_layout) {
+ fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
+ return -1;
+ }
+ }
+ is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
+ is->audio_src_freq = is->audio_tgt_freq = spec.freq;
+ is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
+ is->audio_src_channels = is->audio_tgt_channels = spec.channels;
}
ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
is->audio_diff_avg_count = 0;
/* since we do not have a precise anough audio fifo fullness,
we correct audio sync only if larger than this threshold */
- is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
+ is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
packet_queue_init(&is->audioq);
SDL_CloseAudio();
packet_queue_end(&is->audioq);
- if (is->reformat_ctx)
- av_audio_convert_free(is->reformat_ctx);
- is->reformat_ctx = NULL;
+ if (is->swr_ctx)
+ swr_free(&is->swr_ctx);
+ av_free_packet(&is->audio_pkt);
+
+ if (is->rdft) {
+ av_rdft_end(is->rdft);
+ av_freep(&is->rdft_data);
+ }
break;
case AVMEDIA_TYPE_VIDEO:
packet_queue_abort(&is->videoq);
if(genpts)
ic->flags |= AVFMT_FLAG_GENPTS;
+ av_dict_set(&codec_opts, "request_channels", "2", 0);
+
opts = setup_find_stream_info_opts(ic, codec_opts);
orig_nb_streams = ic->nb_streams;
pkt->stream_index= is->video_stream;
packet_queue_put(&is->videoq, pkt);
}
+ if (is->audio_stream >= 0 &&
+ is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
+ av_init_packet(pkt);
+ pkt->data = NULL;
+ pkt->size = 0;
+ pkt->stream_index = is->audio_stream;
+ packet_queue_put(&is->audioq, pkt);
+ }
SDL_Delay(10);
if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
if(loop!=1 && (!loop || --loop)){
static void toggle_full_screen(VideoState *is)
{
is_full_screen = !is_full_screen;
+#if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
+ /* OSX needs to reallocate the SDL overlays */
+ for (int i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
+ is->pictq[i].reallocate = 1;
+ }
+#endif
video_open(is);
}
input_filename = filename;
}
+static int opt_codec(void *o, const char *opt, const char *arg)
+{
+ switch(opt[strlen(opt)-1]){
+ case 'a' : audio_codec_name = arg; break;
+ case 's' : subtitle_codec_name = arg; break;
+ case 'v' : video_codec_name = arg; break;
+ }
+ return 0;
+}
+
static int dummy;
static const OptionDef options[] = {
{ "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
{ "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
+ { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
{ NULL, },
};
static int opt_help(const char *opt, const char *arg)
{
- const AVClass *class;
av_log_set_callback(log_callback_help);
show_usage();
show_help_options(options, "Main options:\n",
show_help_options(options, "\nAdvanced options:\n",
OPT_EXPERT, OPT_EXPERT);
printf("\n");
- class = avcodec_get_class();
- av_opt_show2(&class, NULL,
- AV_OPT_FLAG_DECODING_PARAM, 0);
- printf("\n");
- class = avformat_get_class();
- av_opt_show2(&class, NULL,
- AV_OPT_FLAG_DECODING_PARAM, 0);
+ show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
+ show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
#if !CONFIG_AVFILTER
- printf("\n");
- class = sws_get_class();
- av_opt_show2(&class, NULL,
- AV_OPT_FLAG_ENCODING_PARAM, 0);
+ show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
#endif
printf("\nWhile playing:\n"
"q, ESC quit\n"
VideoState *is;
av_log_set_flags(AV_LOG_SKIP_REPEATED);
+ parse_loglevel(argc, argv, options);
/* register all codecs, demux and protocols */
avcodec_register_all();
projects / ffmpeg / blobdiff