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Code Issues Releases Activity

100l (document buffer padding requirements)

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Originally committed as revision 1866 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-05-12 23:03:00 +00:00
parent 2def278a45
commit f138f88364
2 changed files with 15 additions and 3 deletions
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6
libavcodec/common.c
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@ -123,6 +123,12 @@ void put_string(PutBitContext * pbc, char *s)
#endif //CONFIG_ENCODERS
/**
* init GetBitContext.
* @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes larger then the actual read bits
* because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
* @param bit_size the size of the buffer in bits
*/
void init_get_bits(GetBitContext *s,
const uint8_t *buffer, int bit_size)
{

12
libavcodec/utils.c
View File

@ -343,9 +343,15 @@ int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
return ret;
}
/* decode a frame. return -1 if error, otherwise return the number of
bytes used. If no frame could be decompressed, *got_picture_ptr is
zero. Otherwise, it is non zero */
/**
* decode a frame.
* @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
* because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
* @param buf_size the size of the buffer in bytes
* @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
* @return -1 if error, otherwise return the number of
* bytes used.
*/
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
int *got_picture_ptr,
uint8_t *buf, int buf_size)