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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  aac_latm: reconfigure decoder on audio specific config changes
  latmdec: fix audio specific config parsing
  Add avcodec_decode_audio4().
  avcodec: change number of plane pointers from 4 to 8 at next major bump.
  Update developers documentation with coding conventions.
  svq1dec: avoid undefined get_bits(0) call
  ARM: h264dsp_neon cosmetics
  ARM: make some NEON macros reusable
  Do not memcpy raw video frames when using null muxer
  fate: update asf seektest
  vp8: flush buffers on size changes.
  doc: improve general documentation for MacOSX
  asf: use packet dts as approximation of pts
  asf: do not call av_read_frame
  rtsp: Initialize the media_type_mask in the rtp guessing demuxer
  Cleaned up alacenc.c

Conflicts:
	doc/APIchanges
	doc/developer.texi
	libavcodec/8svx.c
	libavcodec/aacdec.c
	libavcodec/ac3dec.c
	libavcodec/avcodec.h
	libavcodec/nellymoserdec.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/version.h
	libavcodec/wmadec.c
	libavformat/asfdec.c
	tests/ref/seek/lavf_asf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2011-12-03 02:08:55 +01:00
parent 12804348f5 d268b79e34
commit e4de71677f
87 changed files with 2226 additions and 1307 deletions
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63
libavcodec/wmaprodec.c
View File

@@ -167,6 +167,7 @@ typedef struct {
typedef struct WMAProDecodeCtx {
/* generic decoder variables */
AVCodecContext* avctx; ///< codec context for av_log
AVFrame frame; ///< AVFrame for decoded output
DSPContext dsp; ///< accelerated DSP functions
FmtConvertContext fmt_conv;
uint8_t frame_data[MAX_FRAMESIZE +
@@ -209,8 +210,6 @@ typedef struct WMAProDecodeCtx {
uint32_t frame_num; ///< current frame number (not used for decoding)
GetBitContext gb; ///< bitstream reader context
int buf_bit_size; ///< buffer size in bits
float* samples; ///< current samplebuffer pointer
float* samples_end; ///< maximum samplebuffer pointer
uint8_t drc_gain; ///< gain for the DRC tool
int8_t skip_frame; ///< skip output step
int8_t parsed_all_subframes; ///< all subframes decoded?
@@ -453,6 +452,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
dump_context(s);
avctx->channel_layout = channel_mask;
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
return 0;
}
@@ -1279,22 +1282,15 @@ static int decode_subframe(WMAProDecodeCtx *s)
*@return 0 if the trailer bit indicates that this is the last frame,
* 1 if there are additional frames
*/
static int decode_frame(WMAProDecodeCtx *s)
static int decode_frame(WMAProDecodeCtx *s, int *got_frame_ptr)
{
AVCodecContext *avctx = s->avctx;
GetBitContext* gb = &s->gb;
int more_frames = 0;
int len = 0;
int i;
int i, ret;
const float *out_ptr[WMAPRO_MAX_CHANNELS];
/** check for potential output buffer overflow */
if (s->num_channels * s->samples_per_frame > s->samples_end - s->samples) {
/** return an error if no frame could be decoded at all */
av_log(s->avctx, AV_LOG_ERROR,
"not enough space for the output samples\n");
s->packet_loss = 1;
return 0;
}
float *samples;
/** get frame length */
if (s->len_prefix)
@@ -1360,10 +1356,19 @@ static int decode_frame(WMAProDecodeCtx *s)
}
}
/* get output buffer */
s->frame.nb_samples = s->samples_per_frame;
if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
s->packet_loss = 1;
return 0;
}
samples = (float *)s->frame.data[0];
/** interleave samples and write them to the output buffer */
for (i = 0; i < s->num_channels; i++)
out_ptr[i] = s->channel[i].out;
s->fmt_conv.float_interleave(s->samples, out_ptr, s->samples_per_frame,
s->fmt_conv.float_interleave(samples, out_ptr, s->samples_per_frame,
s->num_channels);
for (i = 0; i < s->num_channels; i++) {
@@ -1375,8 +1380,10 @@ static int decode_frame(WMAProDecodeCtx *s)
if (s->skip_frame) {
s->skip_frame = 0;
} else
s->samples += s->num_channels * s->samples_per_frame;
*got_frame_ptr = 0;
} else {
*got_frame_ptr = 1;
}
if (s->len_prefix) {
if (len != (get_bits_count(gb) - s->frame_offset) + 2) {
@@ -1473,8 +1480,8 @@ static void save_bits(WMAProDecodeCtx *s, GetBitContext* gb, int len,
*@param avpkt input packet
*@return number of bytes that were read from the input buffer
*/
static int decode_packet(AVCodecContext *avctx,
void *data, int *data_size, AVPacket* avpkt)
static int decode_packet(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket* avpkt)
{
WMAProDecodeCtx *s = avctx->priv_data;
GetBitContext* gb = &s->pgb;
@@ -1483,9 +1490,7 @@ static int decode_packet(AVCodecContext *avctx,
int num_bits_prev_frame;
int packet_sequence_number;
s->samples = data;
s->samples_end = (float*)((int8_t*)data + *data_size);
*data_size = 0;
*got_frame_ptr = 0;
if (s->packet_done || s->packet_loss) {
s->packet_done = 0;
@@ -1532,7 +1537,7 @@ static int decode_packet(AVCodecContext *avctx,
/** decode the cross packet frame if it is valid */
if (!s->packet_loss)
decode_frame(s);
decode_frame(s, got_frame_ptr);
} else if (s->num_saved_bits - s->frame_offset) {
av_dlog(avctx, "ignoring %x previously saved bits\n",
s->num_saved_bits - s->frame_offset);
@@ -1555,7 +1560,7 @@ static int decode_packet(AVCodecContext *avctx,
(frame_size = show_bits(gb, s->log2_frame_size)) &&
frame_size <= remaining_bits(s, gb)) {
save_bits(s, gb, frame_size, 0);
s->packet_done = !decode_frame(s);
s->packet_done = !decode_frame(s, got_frame_ptr);
} else if (!s->len_prefix
&& s->num_saved_bits > get_bits_count(&s->gb)) {
/** when the frames do not have a length prefix, we don't know
@@ -1565,7 +1570,7 @@ static int decode_packet(AVCodecContext *avctx,
therefore we save the incoming packet first, then we append
the "previous frame" data from the next packet so that
we get a buffer that only contains full frames */
s->packet_done = !decode_frame(s);
s->packet_done = !decode_frame(s, got_frame_ptr);
} else
s->packet_done = 1;
}
@@ -1577,10 +1582,14 @@ static int decode_packet(AVCodecContext *avctx,
save_bits(s, gb, remaining_bits(s, gb), 0);
}
*data_size = (int8_t *)s->samples - (int8_t *)data;
s->packet_offset = get_bits_count(gb) & 7;
if (s->packet_loss)
return AVERROR_INVALIDDATA;
return (s->packet_loss) ? AVERROR_INVALIDDATA : get_bits_count(gb) >> 3;
if (*got_frame_ptr)
*(AVFrame *)data = s->frame;
return get_bits_count(gb) >> 3;
}
/**
@@ -1611,7 +1620,7 @@ AVCodec ff_wmapro_decoder = {
.init = decode_init,
.close = decode_end,
.decode = decode_packet,
.capabilities = CODEC_CAP_SUBFRAMES,
.capabilities = CODEC_CAP_SUBFRAMES | CODEC_CAP_DR1,
.flush= flush,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 9 Professional"),
};