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api-h264-test: use non-obsolete decoding API

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This commit is contained in:
Anton Khirnov 2020-12-10 20:55:43 +01:00
parent c6357311f3
commit 94988f9107
1 changed files with 53 additions and 32 deletions
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85
tests/api/api-h264-test.c
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@ -37,15 +37,13 @@ static int video_decode_example(const char *input_filename)
AVCodecParameters *origin_par = NULL;
AVFrame *fr = NULL;
uint8_t *byte_buffer = NULL;
AVPacket pkt;
AVPacket *pkt;
AVFormatContext *fmt_ctx = NULL;
int number_of_written_bytes;
int video_stream;
int got_frame = 0;
int byte_buffer_size;
int i = 0;
int result;
int end_of_stream = 0;
result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
if (result < 0) {
@ -97,6 +95,12 @@ static int video_decode_example(const char *input_filename)
return AVERROR(ENOMEM);
}
pkt = av_packet_alloc();
if (!pkt) {
av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n");
return AVERROR(ENOMEM);
}
byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16);
byte_buffer = av_malloc(byte_buffer_size);
if (!byte_buffer) {
@ -106,43 +110,60 @@ static int video_decode_example(const char *input_filename)
printf("#tb %d: %d/%d\n", video_stream, fmt_ctx->streams[video_stream]->time_base.num, fmt_ctx->streams[video_stream]->time_base.den);
i = 0;
av_init_packet(&pkt);
do {
if (!end_of_stream)
if (av_read_frame(fmt_ctx, &pkt) < 0)
end_of_stream = 1;
if (end_of_stream) {
pkt.data = NULL;
pkt.size = 0;
result = 0;
while (result >= 0) {
result = av_read_frame(fmt_ctx, pkt);
if (result >= 0 && pkt->stream_index != video_stream) {
av_packet_unref(pkt);
continue;
}
if (pkt.stream_index == video_stream || end_of_stream) {
got_frame = 0;
if (pkt.pts == AV_NOPTS_VALUE)
pkt.pts = pkt.dts = i;
result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
if (result < 0) {
if (result < 0)
result = avcodec_send_packet(ctx, NULL);
else {
if (pkt->pts == AV_NOPTS_VALUE)
pkt->pts = pkt->dts = i;
result = avcodec_send_packet(ctx, pkt);
}
av_packet_unref(pkt);
if (result < 0) {
av_log(NULL, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
return result;
}
while (result >= 0) {
result = avcodec_receive_frame(ctx, fr);
if (result == AVERROR_EOF)
goto finish;
else if (result == AVERROR(EAGAIN)) {
result = 0;
break;
} else if (result < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
return result;
}
if (got_frame) {
number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
(const uint8_t* const *)fr->data, (const int*) fr->linesize,
ctx->pix_fmt, ctx->width, ctx->height, 1);
if (number_of_written_bytes < 0) {
av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
return number_of_written_bytes;
}
printf("%d, %s, %s, %8"PRId64", %8d, 0x%08lx\n", video_stream,
av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));
number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
(const uint8_t* const *)fr->data, (const int*) fr->linesize,
ctx->pix_fmt, ctx->width, ctx->height, 1);
if (number_of_written_bytes < 0) {
av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
av_frame_unref(fr);
return number_of_written_bytes;
}
av_packet_unref(&pkt);
av_init_packet(&pkt);
printf("%d, %s, %s, %8"PRId64", %8d, 0x%08lx\n", video_stream,
av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));
av_frame_unref(fr);
}
i++;
} while (!end_of_stream || got_frame);
}
av_packet_unref(&pkt);
finish:
av_packet_free(&pkt);
av_frame_free(&fr);
avformat_close_input(&fmt_ctx);
avcodec_free_context(&ctx);