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decoder/ffmpeg: fix playback of planar PCM data

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Interleaving was completely wrong.  This code was never used, so it
didn't have an effect.
This commit is contained in:
Max Kellermann 2012-10-05 16:38:41 +02:00
parent 230a3eb400
commit 1dc27be015
1 changed files with 13 additions and 8 deletions
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21
src/decoder/ffmpeg_decoder_plugin.c
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@ -236,12 +236,16 @@ time_to_ffmpeg(double t, const AVRational time_base)
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(53,25,0)
static void
copy_interleave_frame2(uint8_t *dest, const uint8_t *const*src,
unsigned nchannels, size_t plane_size)
copy_interleave_frame2(uint8_t *dest, uint8_t **src,
unsigned nframes, unsigned nchannels,
unsigned sample_size)
{
for (unsigned channel = 0; channel < nchannels; ++channel) {
memcpy(dest, src[channel], plane_size);
dest += plane_size;
for (unsigned frame = 0; frame < nframes; ++frame) {
for (unsigned channel = 0; channel < nchannels; ++channel) {
memcpy(dest, src[channel] + frame * sample_size,
sample_size);
dest += sample_size;
}
}
}
@ -265,9 +269,10 @@ copy_interleave_frame(const AVCodecContext *codec_context,
if (av_sample_fmt_is_planar(codec_context->sample_fmt) &&
codec_context->channels > 1) {
copy_interleave_frame2(buffer,
(const uint8_t *const*)frame->extended_data,
codec_context->channels, plane_size);
copy_interleave_frame2(buffer, frame->extended_data,
frame->nb_samples,
codec_context->channels,
av_get_bytes_per_sample(codec_context->sample_fmt));
} else {
memcpy(buffer, frame->extended_data[0], data_size);
}