diff options
Diffstat (limited to 'libavcodec/utils.c')
| -rw-r--r-- | libavcodec/utils.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 899061e..f6f0613 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -918,22 +918,44 @@ int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, *number of bytes used. If no frame could be decompressed, *frame_size_ptr is zero. Otherwise, it is the decompressed frame *size in BYTES. */ -int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, +int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, uint8_t *buf, int buf_size) { int ret; - *frame_size_ptr= 0; + //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough + if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){ + av_log(avctx, AV_LOG_ERROR, "buffer smaller then AVCODEC_MAX_AUDIO_FRAME_SIZE\n"); + return -1; + } + if(*frame_size_ptr < FF_MIN_BUFFER_SIZE || + *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t) || + *frame_size_ptr < buf_size){ + av_log(avctx, AV_LOG_ERROR, "buffer too small\n"); + return -1; + } if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){ ret = avctx->codec->decode(avctx, samples, frame_size_ptr, buf, buf_size); avctx->frame_number++; - }else + }else{ ret= 0; + *frame_size_ptr=0; + } return ret; } +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) +int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, + int *frame_size_ptr, + uint8_t *buf, int buf_size){ + *frame_size_ptr= AVCODEC_MAX_AUDIO_FRAME_SIZE; + return avcodec_decode_audio2(avctx, samples, frame_size_ptr, buf, buf_size); +} +#endif + + /* decode a subtitle message. return -1 if error, otherwise return the *number of bytes used. If no subtitle could be decompressed, *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */ |
