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examples/decode_audio: use the new audio decoding API

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This commit is contained in:
Anton Khirnov 2016-10-19 21:56:22 +02:00
parent 0946c754d9
commit 3d66717f7c
1 changed files with 20 additions and 14 deletions
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34
doc/examples/decode_audio.c
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@ -40,23 +40,29 @@
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame,
FILE *outfile)
{
int len, got_frame;
int ret, data_size;
while (pkt->size > 0) {
len = avcodec_decode_audio4(dec_ctx, frame, &got_frame, pkt);
if (len < 0) {
fprintf(stderr, "Error while decoding\n");
/* send the packet with the compressed data to the decoder */
ret = avcodec_send_packet(dec_ctx, pkt);
if (ret < 0) {
fprintf(stderr, "Error submitting the packet to the decoder\n");
exit(1);
}
/* read all the output frames (in general there may be any number of them */
while (ret >= 0) {
ret = avcodec_receive_frame(dec_ctx, frame);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
return;
else if (ret < 0) {
fprintf(stderr, "Error during decoding\n");
exit(1);
}
if (got_frame) {
/* if a frame has been decoded, output it */
int data_size = av_samples_get_buffer_size(NULL, dec_ctx->channels,
frame->nb_samples,
dec_ctx->sample_fmt, 1);
fwrite(frame->data[0], 1, data_size, outfile);
}
pkt->size -= len;
pkt->data += len;
data_size = av_samples_get_buffer_size(NULL, dec_ctx->channels,
frame->nb_samples,
dec_ctx->sample_fmt, 1);
fwrite(frame->data[0], 1, data_size, outfile);
}
}