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author | Alex Converse <aconverse@google.com> | 2011-04-04 16:07:23 -0700 |
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committer | Anton Khirnov <anton@khirnov.net> | 2011-04-05 09:08:04 +0200 |
commit | 14cf0fd2f586471fff4ee379739a5734f568af11 (patch) | |
tree | c3c3a2a2aca28d1e95f2f1e28f991f391feea3c0 | |
parent | b84048479888739e0aa8d9e534c49a3ab0e02252 (diff) | |
download | ffmpeg-streaming-14cf0fd2f586471fff4ee379739a5734f568af11.zip ffmpeg-streaming-14cf0fd2f586471fff4ee379739a5734f568af11.tar.gz |
Add silence support for AV_SAMPLE_FMT_U8.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
-rw-r--r-- | ffmpeg.c | 10 |
1 files changed, 9 insertions, 1 deletions
@@ -1390,6 +1390,14 @@ static void print_report(AVFormatContext **output_files, } } +static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size) +{ + int fill_char = 0x00; + if (sample_fmt == AV_SAMPLE_FMT_U8) + fill_char = 0x80; + memset(buf, fill_char, size); +} + /* pkt = NULL means EOF (needed to flush decoder buffers) */ static int output_packet(AVInputStream *ist, int ist_index, AVOutputStream **ost_table, int nb_ostreams, @@ -1732,7 +1740,7 @@ static int output_packet(AVInputStream *ist, int ist_index, int frame_bytes = enc->frame_size*osize*enc->channels; if (allocated_audio_buf_size < frame_bytes) ffmpeg_exit(1); - memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes); + generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes); } ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf); |