virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-15 14:13:16 +02:00
Code Issues Releases Activity

examples/decode_video: switch to the new decoding API

Browse Source
This commit is contained in:
Anton Khirnov
2016-10-19 21:56:22 +02:00
parent f78d360bba
commit 728ea23cce
1 changed files with 22 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
doc/examples/decode_video.c
View File

@@ -54,15 +54,23 @@ static void decode(AVCodecContext *dec_ctx, AVFrame *frame, AVPacket *pkt,
const char *filename) const char *filename)
{ {
char buf[1024]; char buf[1024];
int ret, got_picture; int ret;
while (pkt->size > 0) { ret = avcodec_send_packet(dec_ctx, pkt);
ret = avcodec_decode_video2(dec_ctx, frame, &got_picture, pkt);
if (ret < 0) { if (ret < 0) {
fprintf(stderr, "Error while decoding frame %d\n", dec_ctx->frame_number); fprintf(stderr, "Error sending a packet for decoding\n");
exit(1); exit(1);
} }
if (got_picture) {
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);
}
printf("saving frame %3d\n", dec_ctx->frame_number); printf("saving frame %3d\n", dec_ctx->frame_number);
fflush(stdout); fflush(stdout);
@@ -72,9 +80,6 @@ static void decode(AVCodecContext *dec_ctx, AVFrame *frame, AVPacket *pkt,
pgm_save(frame->data[0], frame->linesize[0], pgm_save(frame->data[0], frame->linesize[0],
frame->width, frame->height, buf); frame->width, frame->height, buf);
} }
pkt->size -= ret;
pkt->data += ret;
}
} }
int main(int argc, char **argv) int main(int argc, char **argv)
@@ -161,9 +166,7 @@ int main(int argc, char **argv)
} }
/* flush the decoder */ /* flush the decoder */
avpkt.data = NULL; decode(c, picture, NULL, outfilename);
avpkt.size = 0;
decode(c, picture, &avpkt, outfilename);
fclose(f); fclose(f);