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Merge commit '44c9f374f188f92927b7a4aad2101289d446b814' 

* commit '44c9f374f188f92927b7a4aad2101289d446b814':
  examples/qsvdec: convert to the new decoding API

Merged-by: Clément Bœsch <u@pkh.me>
This commit is contained in:
Clément Bœsch 2017-04-03 21:10:07 +02:00
parent 4069394fd4 44c9f374f1
commit 54e195cf52
1 changed files with 25 additions and 23 deletions
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20
doc/examples/qsvdec.c
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@ -92,24 +92,27 @@ static int decode_packet(DecodeContext *decode, AVCodecContext *decoder_ctx,
AVPacket *pkt, AVIOContext *output_ctx) AVPacket *pkt, AVIOContext *output_ctx)
{ {
int ret = 0; int ret = 0;
int got_frame = 1;
while (pkt->size > 0 || (!pkt->data && got_frame)) { ret = avcodec_send_packet(decoder_ctx, pkt);
ret = avcodec_decode_video2(decoder_ctx, frame, &got_frame, pkt);
if (ret < 0) { if (ret < 0) {
fprintf(stderr, "Error during decoding\n"); fprintf(stderr, "Error during decoding\n");
return ret; return ret;
} }
pkt->data += ret; while (ret >= 0) {
pkt->size -= ret; int i, j;
ret = avcodec_receive_frame(decoder_ctx, frame);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
break;
else if (ret < 0) {
fprintf(stderr, "Error during decoding\n");
return ret;
}
/* A real program would do something useful with the decoded frame here. /* A real program would do something useful with the decoded frame here.
* We just retrieve the raw data and write it to a file, which is rather * We just retrieve the raw data and write it to a file, which is rather
* useless but pedagogic. */ * useless but pedagogic. */
if (got_frame) {
int i, j;
ret = av_hwframe_transfer_data(sw_frame, frame, 0); ret = av_hwframe_transfer_data(sw_frame, frame, 0);
if (ret < 0) { if (ret < 0) {
fprintf(stderr, "Error transferring the data to system memory\n"); fprintf(stderr, "Error transferring the data to system memory\n");
@ -127,7 +130,6 @@ fail:
if (ret < 0) if (ret < 0)
return ret; return ret;
} }
}
return 0; return 0;
} }