[FFmpeg-devel] [PATCH 14/16] vmdaudio: add out_bps to VmdAudioContext and use it to replace hard-coded sample size.

Ronald S. Bultje rsbultje
Thu Feb 24 03:51:54 CET 2011


Hi,

On Wed, Feb 23, 2011 at 2:01 PM, Kostya <kostya.shishkov at gmail.com> wrote:
> On Wed, Feb 23, 2011 at 01:11:11PM -0500, Justin Ruggles wrote:
>> ---
>> ?libavcodec/vmdav.c | ? ?8 +++++---
>> ?1 files changed, 5 insertions(+), 3 deletions(-)
>>
>
>> diff --git a/libavcodec/vmdav.c b/libavcodec/vmdav.c
>> index 446e2c1..bd71ae4 100644
>> --- a/libavcodec/vmdav.c
>> +++ b/libavcodec/vmdav.c
>> @@ -420,6 +420,7 @@ static av_cold int vmdvideo_decode_end(AVCodecContext *avctx)
>>
>> ?typedef struct VmdAudioContext {
>> ? ? ?AVCodecContext *avctx;
>> + ? ?int out_bps;
>> ? ? ?int channels;
>> ? ? ?int bits;
>> ? ? ?int block_align;
>> @@ -451,6 +452,7 @@ static av_cold int vmdaudio_decode_init(AVCodecContext *avctx)
>> ? ? ?s->bits = avctx->bits_per_coded_sample;
>> ? ? ?s->block_align = avctx->block_align;
>> ? ? ?avctx->sample_fmt = AV_SAMPLE_FMT_S16;
>> + ? ?s->out_bps = av_get_bits_per_sample_fmt(avctx->sample_fmt) >> 3;
>>
>> ? ? ?av_log(s->avctx, AV_LOG_DEBUG, "%d channels, %d bits/sample, block align = %d, sample rate = %d\n",
>> ? ? ? ? ? ? ?s->channels, s->bits, s->block_align, avctx->sample_rate);
>> @@ -480,7 +482,7 @@ static int vmdaudio_loadsound(VmdAudioContext *s, unsigned char *data,
>> ? ? ?const uint8_t *buf, int silent_chunks, int data_size)
>> ?{
>> ? ? ?int i;
>> - ? ?int silent_size = s->block_align * silent_chunks * 2;
>> + ? ?int silent_size = s->block_align * silent_chunks * s->out_bps;
>>
>> ? ? ?if (silent_chunks) {
>> ? ? ? ? ?memset(data, 0, silent_size);
>> @@ -496,7 +498,7 @@ static int vmdaudio_loadsound(VmdAudioContext *s, unsigned char *data,
>> ? ? ? ? ?}
>> ? ? ?}
>>
>> - ? ?return silent_size + data_size * 2;
>> + ? ?return silent_size + data_size * s->out_bps;
>> ?}
>>
>> ?static int vmdaudio_decode_frame(AVCodecContext *avctx,
>> @@ -535,7 +537,7 @@ static int vmdaudio_decode_frame(AVCodecContext *avctx,
>> ? ? ?}
>>
>> ? ? ?/* ensure output buffer is large enough */
>> - ? ?if (*data_size < (s->block_align*silent_chunks + buf_size) * 2)
>> + ? ?if (*data_size < (s->block_align*silent_chunks + buf_size) * s->out_bps)
>> ? ? ? ? ?return -1;
>>
>> ? ? ?*data_size = vmdaudio_loadsound(s, output_samples, buf, silent_chunks, buf_size);
>
> ok

Queued.

Ronald



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