}
}
+ if(avctx->channels > MAX_CHANNELS){
+ av_log(avctx, AV_LOG_ERROR, "Invalid number of channels (%d)\n", avctx->channels);
+ return -1;
+ }
+
if(ff_wma_init(avctx, flags2)<0)
return -1;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
WMACodecContext *s = avctx->priv_data;
- int nb_frames, bit_offset, i, pos, len;
+ int nb_frames, bit_offset, i, pos, len, out_size;
uint8_t *q;
int16_t *samples;
if (s->use_bit_reservoir) {
/* read super frame header */
skip_bits(&s->gb, 4); /* super frame index */
- nb_frames = get_bits(&s->gb, 4) - 1;
+ nb_frames = get_bits(&s->gb, 4) - (s->last_superframe_len <= 0);
+ } else {
+ nb_frames = 1;
+ }
- if((nb_frames+1) * s->nb_channels * s->frame_len * sizeof(int16_t) > *data_size){
- av_log(s->avctx, AV_LOG_ERROR, "Insufficient output space\n");
- goto fail;
- }
+ out_size = nb_frames * s->frame_len * s->nb_channels *
+ av_get_bytes_per_sample(avctx->sample_fmt);
+ if (*data_size < out_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "Insufficient output space\n");
+ goto fail;
+ }
+ if (s->use_bit_reservoir) {
bit_offset = get_bits(&s->gb, s->byte_offset_bits + 3);
if (s->last_superframe_len > 0) {
if (wma_decode_frame(s, samples) < 0)
goto fail;
samples += s->nb_channels * s->frame_len;
+ nb_frames--;
}
/* read each frame starting from bit_offset */
s->last_superframe_len = len;
memcpy(s->last_superframe, buf + pos, len);
} else {
- if(s->nb_channels * s->frame_len * sizeof(int16_t) > *data_size){
- av_log(s->avctx, AV_LOG_ERROR, "Insufficient output space\n");
- goto fail;
- }
/* single frame decode */
if (wma_decode_frame(s, samples) < 0)
goto fail;
}
//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d outbytes:%d eaten:%d\n", s->frame_len_bits, s->block_len_bits, s->frame_len, s->block_len, (int8_t *)samples - (int8_t *)data, s->block_align);
- *data_size = (int8_t *)samples - (int8_t *)data;
+ *data_size = out_size;
return buf_size;
fail:
/* when error, we reset the bit reservoir */
s->last_superframe_len= 0;
}
-AVCodec ff_wmav1_decoder =
-{
- "wmav1",
- AVMEDIA_TYPE_AUDIO,
- CODEC_ID_WMAV1,
- sizeof(WMACodecContext),
- wma_decode_init,
- NULL,
- ff_wma_end,
- wma_decode_superframe,
- .flush=flush,
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
+AVCodec ff_wmav1_decoder = {
+ .name = "wmav1",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = CODEC_ID_WMAV1,
+ .priv_data_size = sizeof(WMACodecContext),
+ .init = wma_decode_init,
+ .close = ff_wma_end,
+ .decode = wma_decode_superframe,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
};
-AVCodec ff_wmav2_decoder =
-{
- "wmav2",
- AVMEDIA_TYPE_AUDIO,
- CODEC_ID_WMAV2,
- sizeof(WMACodecContext),
- wma_decode_init,
- NULL,
- ff_wma_end,
- wma_decode_superframe,
- .flush=flush,
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
+AVCodec ff_wmav2_decoder = {
+ .name = "wmav2",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = CODEC_ID_WMAV2,
+ .priv_data_size = sizeof(WMACodecContext),
+ .init = wma_decode_init,
+ .close = ff_wma_end,
+ .decode = wma_decode_superframe,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
};