testing code
---
avconv.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/avconv.c b/avconv.c
index edce1e5..348f312 100644
--- a/avconv.c
+++ b/avconv.c
@@ -46,6 +46,7 @@
#include "libavutil/libm.h"
#include "libavutil/imgutils.h"
#include "libavutil/time.h"
+#include "libavutil/downmix_info.h"
#include "libavformat/os_support.h"
# include "libavfilter/avfilter.h"
@@ -1073,6 +1074,45 @@ static int decode_audio(InputStream *ist, AVPacket *pkt,
int *got_output)
return ret;
}
+ /* log AVDownmixInfo side data for the first frame */
+ static int dirty_counter = 0;
+ if (!dirty_counter) {
+ AVFrameSideData *side_data;
+ if ((side_data = av_frame_get_side_data(decoded_frame,
+ AV_FRAME_DATA_DOWNMIX_INFO))) {
+ AVDownmixInfo *downmix_info = (AVDownmixInfo*)side_data->data;
+ switch (downmix_info->preferred_downmix_type) {
+ case AV_DOWNMIX_TYPE_LORO:
+ av_log(NULL, AV_LOG_FATAL,
+ "Preferred downmix: Lo/Ro\n");
+ break;
+ case AV_DOWNMIX_TYPE_UNKNOWN:
+ av_log(NULL, AV_LOG_FATAL,
+ "Preferred downmix: Unknown\n");
+ break;
+ case AV_DOWNMIX_TYPE_DPLII:
+ av_log(NULL, AV_LOG_FATAL,
+ "Preferred downmix: Dolby Pro Logic II\n");
+ break;
+ case AV_DOWNMIX_TYPE_LTRT:
+ av_log(NULL, AV_LOG_FATAL,
+ "Preferred downmix: Lt/Rt (Dolby Surround)\n");
+ break;
+ default:
+ break;
+ }
+ av_log(NULL, AV_LOG_FATAL, "Center mix level: %lf ltrt: %lf\n",
+ downmix_info->center_mix_level,
+ downmix_info->center_mix_level_ltrt);
+ av_log(NULL, AV_LOG_FATAL, "Surround mix level: %lf ltrt: %lf\n",
+ downmix_info->surround_mix_level,
+ downmix_info->surround_mix_level_ltrt);
+ av_log(NULL, AV_LOG_FATAL, "LFE mix level: %lf\n",
+ downmix_info->lfe_mix_level);
+ }
+ dirty_counter = 1;
+ }
+
/* if the decoder provides a pts, use it instead of the last packet pts.
the decoder could be delaying output by a packet or more. */
if (decoded_frame->pts != AV_NOPTS_VALUE)
--
1.8.3.4 (Apple Git-47)
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