|
|
|
@ -73,16 +73,14 @@ static int compare_crc_in_array(uint32_t crc, int64_t pts) |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream, |
|
|
|
|
AVCodecContext *ctx, AVFrame *fr, uint64_t ts_start, uint64_t ts_end, int no_seeking) |
|
|
|
|
AVCodecContext *ctx, AVPacket *pkt, AVFrame *fr, |
|
|
|
|
uint64_t ts_start, uint64_t ts_end, int no_seeking) |
|
|
|
|
{ |
|
|
|
|
int number_of_written_bytes; |
|
|
|
|
int got_frame = 0; |
|
|
|
|
int result; |
|
|
|
|
int end_of_stream = 0; |
|
|
|
|
int byte_buffer_size; |
|
|
|
|
uint8_t *byte_buffer; |
|
|
|
|
uint32_t crc; |
|
|
|
|
AVPacket pkt; |
|
|
|
|
|
|
|
|
|
byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16); |
|
|
|
|
byte_buffer = av_malloc(byte_buffer_size); |
|
|
|
@ -101,53 +99,66 @@ static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream, |
|
|
|
|
avcodec_flush_buffers(ctx); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
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 = 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) && (!end_of_stream)) { |
|
|
|
|
|
|
|
|
|
if (result < 0) |
|
|
|
|
result = avcodec_send_packet(ctx, NULL); |
|
|
|
|
else { |
|
|
|
|
if (pkt->pts == AV_NOPTS_VALUE) { |
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Error: frames doesn't have pts values\n"); |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt); |
|
|
|
|
if (result < 0) { |
|
|
|
|
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; |
|
|
|
|
} |
|
|
|
|
if ((!no_seeking) && (fr->pts > ts_end)) |
|
|
|
|
break; |
|
|
|
|
crc = av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes); |
|
|
|
|
printf("%10"PRId64", 0x%08"PRIx32"\n", fr->pts, crc); |
|
|
|
|
if (no_seeking) { |
|
|
|
|
if (add_crc_to_array(crc, fr->pts) < 0) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
if (compare_crc_in_array(crc, fr->pts) < 0) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
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; |
|
|
|
|
} |
|
|
|
|
if ((!no_seeking) && (fr->pts > ts_end)) |
|
|
|
|
break; |
|
|
|
|
crc = av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes); |
|
|
|
|
printf("%10"PRId64", 0x%08"PRIx32"\n", fr->pts, crc); |
|
|
|
|
if (no_seeking) { |
|
|
|
|
if (add_crc_to_array(crc, fr->pts) < 0) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
if (compare_crc_in_array(crc, fr->pts) < 0) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
av_frame_unref(fr); |
|
|
|
|
} |
|
|
|
|
av_packet_unref(&pkt); |
|
|
|
|
av_init_packet(&pkt); |
|
|
|
|
} while ((!end_of_stream || got_frame) && (no_seeking || (fr->pts + fr->pkt_duration <= ts_end))); |
|
|
|
|
} while (result >= 0 && (no_seeking || (fr->pts + fr->pkt_duration <= ts_end))); |
|
|
|
|
|
|
|
|
|
av_packet_unref(&pkt); |
|
|
|
|
finish: |
|
|
|
|
av_freep(&byte_buffer); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
@ -176,6 +187,7 @@ static int seek_test(const char *input_filename, const char *start, const char * |
|
|
|
|
AVCodec *codec = NULL; |
|
|
|
|
AVCodecContext *ctx= NULL; |
|
|
|
|
AVCodecParameters *origin_par = NULL; |
|
|
|
|
AVPacket *pkt = NULL; |
|
|
|
|
AVFrame *fr = NULL; |
|
|
|
|
AVFormatContext *fmt_ctx = NULL; |
|
|
|
|
int video_stream; |
|
|
|
@ -250,13 +262,20 @@ static int seek_test(const char *input_filename, const char *start, const char * |
|
|
|
|
goto end; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, fr, 0, 0, 1); |
|
|
|
|
pkt = av_packet_alloc(); |
|
|
|
|
if (!pkt) { |
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n"); |
|
|
|
|
result = AVERROR(ENOMEM); |
|
|
|
|
goto end; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, pkt, fr, 0, 0, 1); |
|
|
|
|
if (result != 0) |
|
|
|
|
goto end; |
|
|
|
|
|
|
|
|
|
for (i = start_ts; i < end_ts; i += 100) { |
|
|
|
|
for (j = i + 100; j < end_ts; j += 100) { |
|
|
|
|
result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, fr, i, j, 0); |
|
|
|
|
result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, pkt, fr, i, j, 0); |
|
|
|
|
if (result != 0) |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
@ -265,6 +284,7 @@ static int seek_test(const char *input_filename, const char *start, const char * |
|
|
|
|
end: |
|
|
|
|
av_freep(&crc_array); |
|
|
|
|
av_freep(&pts_array); |
|
|
|
|
av_packet_free(&pkt); |
|
|
|
|
av_frame_free(&fr); |
|
|
|
|
avformat_close_input(&fmt_ctx); |
|
|
|
|
avcodec_free_context(&ctx); |
|
|
|
|