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doc/examples/muxing: Exchange tmp_frame and frame
Reduces difference to 56f98e340f
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -235,10 +235,10 @@ static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, A
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else
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nb_samples = c->frame_size;
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ost->frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
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ost->frame = alloc_audio_frame(c->sample_fmt, c->channel_layout,
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c->sample_rate, nb_samples);
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ost->tmp_frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
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c->sample_rate, nb_samples);
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ost->tmp_frame = alloc_audio_frame(c->sample_fmt, c->channel_layout,
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c->sample_rate, ost->frame->nb_samples);
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/* create resampler context */
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ost->swr_ctx = swr_alloc();
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@ -266,15 +266,16 @@ static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, A
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* 'nb_channels' channels. */
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static AVFrame *get_audio_frame(OutputStream *ost)
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{
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AVFrame *frame = ost->tmp_frame;
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int j, i, v;
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int16_t *q = (int16_t*)ost->frame->data[0];
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int16_t *q = (int16_t*)frame->data[0];
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/* check if we want to generate more frames */
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if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
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STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
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return NULL;
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for (j = 0; j < ost->frame->nb_samples; j++) {
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for (j = 0; j <frame->nb_samples; j++) {
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v = (int)(sin(ost->t) * 10000);
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for (i = 0; i < ost->st->codec->channels; i++)
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*q++ = v;
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@ -282,10 +283,10 @@ static AVFrame *get_audio_frame(OutputStream *ost)
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ost->tincr += ost->tincr2;
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}
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ost->frame->pts = ost->next_pts;
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ost->next_pts += ost->frame->nb_samples;
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frame->pts = ost->next_pts;
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ost->next_pts += frame->nb_samples;
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return ost->frame;
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return frame;
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}
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/*
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@ -317,19 +318,19 @@ static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
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* internally;
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* make sure we do not overwrite it here
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*/
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ret = av_frame_make_writable(ost->tmp_frame);
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ret = av_frame_make_writable(ost->frame);
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if (ret < 0)
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exit(1);
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/* convert to destination format */
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ret = swr_convert(ost->swr_ctx,
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ost->tmp_frame->data, dst_nb_samples,
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ost->frame->data, dst_nb_samples,
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(const uint8_t **)frame->data, frame->nb_samples);
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if (ret < 0) {
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fprintf(stderr, "Error while converting\n");
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exit(1);
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}
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frame = ost->tmp_frame;
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frame = ost->frame;
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frame->pts = av_rescale_q(ost->samples_count, (AVRational){1, c->sample_rate}, c->time_base);
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ost->samples_count += dst_nb_samples;
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