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lavc: add ff_alloc_packet2().

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This contains a AVCodecContext thus allowing us to prevent the
error message duplication

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-22 03:55:21 +01:00
parent 6c9db40205
commit 00663de3b7
2 changed files with 19 additions and 4 deletions
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3
libavcodec/internal.h
View File

@ -127,6 +127,7 @@ int avpriv_unlock_avformat(void);
* ensure the output packet data is large enough, whether provided by the user
* or allocated in this function.
*
* @param avctx the AVCodecContext of the encoder
* @param avpkt the AVPacket
* If avpkt->data is already set, avpkt->size is checked
* to ensure it is large enough.
@ -136,6 +137,8 @@ int avpriv_unlock_avformat(void);
* @param size the minimum required packet size
* @return 0 on success, negative error code on failure
*/
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size);
int ff_alloc_packet(AVPacket *avpkt, int size);
/**

20
libavcodec/utils.c
View File

@ -939,26 +939,38 @@ free_and_end:
goto end;
}
int ff_alloc_packet(AVPacket *avpkt, int size)
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size)
{
if (size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
if (size < 0 || avpkt->size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
av_log(avctx, AV_LOG_ERROR, "Size %d invalid\n", size);
return AVERROR(EINVAL);
}
if (avpkt->data) {
void *destruct = avpkt->destruct;
if (avpkt->size < size)
if (avpkt->size < size) {
av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %d)\n", avpkt->size, size);
return AVERROR(EINVAL);
}
av_init_packet(avpkt);
avpkt->destruct = destruct;
avpkt->size = size;
return 0;
} else {
return av_new_packet(avpkt, size);
int ret = av_new_packet(avpkt, size);
if (ret < 0)
av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", size);
return ret;
}
}
int ff_alloc_packet(AVPacket *avpkt, int size)
{
return ff_alloc_packet2(NULL, avpkt, size);
}
int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
AVPacket *avpkt,
const AVFrame *frame,