diff options
Diffstat (limited to 'libavcodec/dca.c')
| -rw-r--r-- | libavcodec/dca.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/libavcodec/dca.c b/libavcodec/dca.c index 21a245585d..e3f87b92eb 100644 --- a/libavcodec/dca.c +++ b/libavcodec/dca.c @@ -261,6 +261,7 @@ static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba, int id typedef struct { AVCodecContext *avctx; + AVFrame frame; /* Frame header */ int frame_type; ///< type of the current frame int samples_deficit; ///< deficit sample count @@ -1635,9 +1636,8 @@ static void dca_exss_parse_header(DCAContext *s) * Main frame decoding function * FIXME add arguments */ -static int dca_decode_frame(AVCodecContext * avctx, - void *data, int *data_size, - AVPacket *avpkt) +static int dca_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame_ptr, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; @@ -1645,9 +1645,8 @@ static int dca_decode_frame(AVCodecContext * avctx, int lfe_samples; int num_core_channels = 0; int i, ret; - float *samples_flt = data; - int16_t *samples_s16 = data; - int out_size; + float *samples_flt; + int16_t *samples_s16; DCAContext *s = avctx->priv_data; int channels; int core_ss_end; @@ -1839,11 +1838,14 @@ static int dca_decode_frame(AVCodecContext * avctx, return AVERROR_PATCHWELCOME; } - out_size = 256 / 8 * s->sample_blocks * channels * - av_get_bytes_per_sample(avctx->sample_fmt); - if (*data_size < out_size) - return AVERROR(EINVAL); - *data_size = out_size; + /* get output buffer */ + s->frame.nb_samples = 256 * (s->sample_blocks / 8); + if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } + samples_flt = (float *)s->frame.data[0]; + samples_s16 = (int16_t *)s->frame.data[0]; /* filter to get final output */ for (i = 0; i < (s->sample_blocks / 8); i++) { @@ -1877,6 +1879,9 @@ static int dca_decode_frame(AVCodecContext * avctx, s->lfe_data[i] = s->lfe_data[i + lfe_samples]; } + *got_frame_ptr = 1; + *(AVFrame *)data = s->frame; + return buf_size; } @@ -1919,6 +1924,9 @@ static av_cold int dca_decode_init(AVCodecContext * avctx) avctx->channels = avctx->request_channels; } + avcodec_get_frame_defaults(&s->frame); + avctx->coded_frame = &s->frame; + return 0; } @@ -1947,7 +1955,7 @@ AVCodec ff_dca_decoder = { .decode = dca_decode_frame, .close = dca_decode_end, .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"), - .capabilities = CODEC_CAP_CHANNEL_CONF, + .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1, .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }, |