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Merge remote-tracking branch 'qatar/master' 

* qatar/master: (51 commits)
  cin audio: use sign_extend() instead of casting to int16_t
  cin audio: restructure decoding loop to avoid a separate counter variable
  cin audio: use local variable for delta value
  cin audio: remove unneeded cast from void*
  cin audio: validate the channel count
  cin audio: remove unneeded AVCodecContext pointer from CinAudioContext
  dsicin: fix several audio-related fields in the CIN demuxer
  flacdec: use av_get_bytes_per_sample() to get sample size
  dca: handle errors from dca_decode_block()
  dca: return error if the frame header is invalid
  dca: return proper error codes instead of -1
  utvideo: handle empty Huffman trees
  binkaudio: change short to int16_t
  binkaudio: only decode one block at a time.
  binkaudio: store interleaved overlap samples in BinkAudioContext.
  binkaudio: pre-calculate quantization factors
  binkaudio: add some buffer overread checks.
  atrac3: support float or int16 output using request_sample_fmt
  atrac3: add CODEC_CAP_SUBFRAMES capability
  atrac3: return appropriate error codes instead of -1
  ...

Conflicts:
	libavcodec/atrac1.c
	libavcodec/dca.c
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-10-30 01:33:41 +02:00
parent 1af3571e05 7d1b17b833
commit d17e7070a0
14 changed files with 492 additions and 276 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

93
libavcodec/atrac1.c
View File

@ -36,6 +36,7 @@
#include "get_bits.h"
#include "dsputil.h"
#include "fft.h"
#include "fmtconvert.h"
#include "sinewin.h"
#include "atrac.h"
@ -78,10 +79,11 @@ typedef struct {
DECLARE_ALIGNED(32, float, mid)[256];
DECLARE_ALIGNED(32, float, high)[512];
float* bands[3];
DECLARE_ALIGNED(32, float, out_samples)[AT1_MAX_CHANNELS][AT1_SU_SAMPLES];
float *out_samples[AT1_MAX_CHANNELS];
FFTContext mdct_ctx[3];
int channels;
DSPContext dsp;
FmtConvertContext fmt_conv;
} AT1Ctx;
/** size of the transform in samples in the long mode for each QMF band */
@ -129,7 +131,7 @@ static int at1_imdct_block(AT1SUCtx* su, AT1Ctx *q)
nbits = mdct_long_nbits[band_num] - log2_block_count;
if (nbits != 5 && nbits != 7 && nbits != 8)
return -1;
return AVERROR_INVALIDDATA;
} else {
block_size = 32;
nbits = 5;
@ -173,14 +175,14 @@ static int at1_parse_bsm(GetBitContext* gb, int log2_block_cnt[AT1_QMF_BANDS])
/* low and mid band */
log2_block_count_tmp = get_bits(gb, 2);
if (log2_block_count_tmp & 1)
return -1;
return AVERROR_INVALIDDATA;
log2_block_cnt[i] = 2 - log2_block_count_tmp;
}
/* high band */
log2_block_count_tmp = get_bits(gb, 2);
if (log2_block_count_tmp != 0 && log2_block_count_tmp != 3)
return -1;
return AVERROR_INVALIDDATA;
log2_block_cnt[IDX_HIGH_BAND] = 3 - log2_block_count_tmp;
skip_bits(gb, 2);
@ -229,7 +231,7 @@ static int at1_unpack_dequant(GetBitContext* gb, AT1SUCtx* su,
/* check for bitstream overflow */
if (bits_used > AT1_SU_MAX_BITS)
return -1;
return AVERROR_INVALIDDATA;
/* get the position of the 1st spec according to the block size mode */
pos = su->log2_block_count[band_num] ? bfu_start_short[bfu_num] : bfu_start_long[bfu_num];
@ -276,14 +278,21 @@ static int atrac1_decode_frame(AVCodecContext *avctx, void *data,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
AT1Ctx *q = avctx->priv_data;
int ch, ret, i;
int ch, ret, out_size;
GetBitContext gb;
float* samples = data;
if (buf_size < 212 * q->channels) {
av_log(avctx, AV_LOG_ERROR,"Not enought data to decode!\n");
return -1;
av_log(avctx,AV_LOG_ERROR,"Not enough data to decode!\n");
return AVERROR_INVALIDDATA;
}
out_size = q->channels * AT1_SU_SAMPLES *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
for (ch = 0; ch < q->channels; ch++) {
@ -303,44 +312,72 @@ static int atrac1_decode_frame(AVCodecContext *avctx, void *data,
ret = at1_imdct_block(su, q);
if (ret < 0)
return ret;
at1_subband_synthesis(q, su, q->out_samples[ch]);
at1_subband_synthesis(q, su, q->channels == 1 ? samples : q->out_samples[ch]);
}
/* interleave; FIXME, should create/use a DSP function */
if (q->channels == 1) {
/* mono */
memcpy(samples, q->out_samples[0], AT1_SU_SAMPLES * 4);
} else {
/* stereo */
for (i = 0; i < AT1_SU_SAMPLES; i++) {
samples[i * 2] = q->out_samples[0][i];
samples[i * 2 + 1] = q->out_samples[1][i];
}
/* interleave */
if (q->channels == 2) {
q->fmt_conv.float_interleave(samples, (const float **)q->out_samples,
AT1_SU_SAMPLES, 2);
}
*data_size = q->channels * AT1_SU_SAMPLES * sizeof(*samples);
*data_size = out_size;
return avctx->block_align;
}
static av_cold int atrac1_decode_end(AVCodecContext * avctx)
{
AT1Ctx *q = avctx->priv_data;
av_freep(&q->out_samples[0]);
ff_mdct_end(&q->mdct_ctx[0]);
ff_mdct_end(&q->mdct_ctx[1]);
ff_mdct_end(&q->mdct_ctx[2]);
return 0;
}
static av_cold int atrac1_decode_init(AVCodecContext *avctx)
{
AT1Ctx *q = avctx->priv_data;
int ret;
avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
if (avctx->channels < 1 || avctx->channels > AT1_MAX_CHANNELS) {
av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %d\n",
avctx->channels);
return AVERROR(EINVAL);
}
q->channels = avctx->channels;
if (avctx->channels == 2) {
q->out_samples[0] = av_malloc(2 * AT1_SU_SAMPLES * sizeof(*q->out_samples[0]));
q->out_samples[1] = q->out_samples[0] + AT1_SU_SAMPLES;
if (!q->out_samples[0]) {
av_freep(&q->out_samples[0]);
return AVERROR(ENOMEM);
}
}
/* Init the mdct transforms */
ff_mdct_init(&q->mdct_ctx[0], 6, 1, -1.0/ (1 << 15));
ff_mdct_init(&q->mdct_ctx[1], 8, 1, -1.0/ (1 << 15));
ff_mdct_init(&q->mdct_ctx[2], 9, 1, -1.0/ (1 << 15));
if ((ret = ff_mdct_init(&q->mdct_ctx[0], 6, 1, -1.0/ (1 << 15))) ||
(ret = ff_mdct_init(&q->mdct_ctx[1], 8, 1, -1.0/ (1 << 15))) ||
(ret = ff_mdct_init(&q->mdct_ctx[2], 9, 1, -1.0/ (1 << 15)))) {
av_log(avctx, AV_LOG_ERROR, "Error initializing MDCT\n");
atrac1_decode_end(avctx);
return ret;
}
ff_init_ff_sine_windows(5);
atrac_generate_tables();
dsputil_init(&q->dsp, avctx);
ff_fmt_convert_init(&q->fmt_conv, avctx);
q->bands[0] = q->low;
q->bands[1] = q->mid;
@ -356,16 +393,6 @@ static av_cold int atrac1_decode_init(AVCodecContext *avctx)
}
static av_cold int atrac1_decode_end(AVCodecContext * avctx) {
AT1Ctx *q = avctx->priv_data;
ff_mdct_end(&q->mdct_ctx[0]);
ff_mdct_end(&q->mdct_ctx[1]);
ff_mdct_end(&q->mdct_ctx[2]);
return 0;
}
AVCodec ff_atrac1_decoder = {
.name = "atrac1",
.type = AVMEDIA_TYPE_AUDIO,

143
libavcodec/atrac3.c
View File

@ -41,6 +41,7 @@
#include "dsputil.h"
#include "bytestream.h"
#include "fft.h"
#include "fmtconvert.h"
#include "atrac.h"
#include "atrac3data.h"
@ -48,6 +49,8 @@
#define JOINT_STEREO 0x12
#define STEREO 0x2
#define SAMPLES_PER_FRAME 1024
#define MDCT_SIZE 512
/* These structures are needed to store the parsed gain control data. */
typedef struct {
@ -70,12 +73,12 @@ typedef struct {
int bandsCoded;
int numComponents;
tonal_component components[64];
float prevFrame[1024];
float prevFrame[SAMPLES_PER_FRAME];
int gcBlkSwitch;
gain_block gainBlock[2];
DECLARE_ALIGNED(32, float, spectrum)[1024];
DECLARE_ALIGNED(32, float, IMDCT_buf)[1024];
DECLARE_ALIGNED(32, float, spectrum)[SAMPLES_PER_FRAME];
DECLARE_ALIGNED(32, float, IMDCT_buf)[SAMPLES_PER_FRAME];
float delayBuf1[46]; ///<qmf delay buffers
float delayBuf2[46];
@ -107,7 +110,7 @@ typedef struct {
//@}
//@{
/** data buffers */
float outSamples[2048];
float *outSamples[2];
uint8_t* decoded_bytes_buffer;
float tempBuf[1070];
//@}
@ -120,9 +123,10 @@ typedef struct {
//@}
FFTContext mdct_ctx;
FmtConvertContext fmt_conv;
} ATRAC3Context;
static DECLARE_ALIGNED(32, float, mdct_window)[512];
static DECLARE_ALIGNED(32, float, mdct_window)[MDCT_SIZE];
static VLC spectral_coeff_tab[7];
static float gain_tab1[16];
static float gain_tab2[31];
@ -159,7 +163,7 @@ static void IMLT(ATRAC3Context *q, float *pInput, float *pOutput, int odd_band)
q->mdct_ctx.imdct_calc(&q->mdct_ctx,pOutput,pInput);
/* Perform windowing on the output. */
dsp.vector_fmul(pOutput, pOutput, mdct_window, 512);
dsp.vector_fmul(pOutput, pOutput, mdct_window, MDCT_SIZE);
}
@ -192,7 +196,7 @@ static int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
}
static av_cold void init_atrac3_transforms(ATRAC3Context *q) {
static av_cold int init_atrac3_transforms(ATRAC3Context *q, int is_float) {
float enc_window[256];
int i;
@ -208,7 +212,7 @@ static av_cold void init_atrac3_transforms(ATRAC3Context *q) {
}
/* Initialize the MDCT transform. */
ff_mdct_init(&q->mdct_ctx, 9, 1, 1.0);
return ff_mdct_init(&q->mdct_ctx, 9, 1, is_float ? 1.0 / 32768 : 1.0);
}
/**
@ -221,6 +225,8 @@ static av_cold int atrac3_decode_close(AVCodecContext *avctx)
av_free(q->pUnits);
av_free(q->decoded_bytes_buffer);
av_freep(&q->outSamples[0]);
ff_mdct_end(&q->mdct_ctx);
return 0;
@ -340,7 +346,7 @@ static int decodeSpectrum (GetBitContext *gb, float *pOut)
/* Clear the subbands that were not coded. */
first = subbandTab[cnt];
memset(pOut+first, 0, (1024 - first) * sizeof(float));
memset(pOut+first, 0, (SAMPLES_PER_FRAME - first) * sizeof(float));
return numSubbands;
}
@ -370,7 +376,7 @@ static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent
coding_mode_selector = get_bits(gb,2);
if (coding_mode_selector == 2)
return -1;
return AVERROR_INVALIDDATA;
coding_mode = coding_mode_selector & 1;
@ -382,7 +388,7 @@ static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent
quant_step_index = get_bits(gb,3);
if (quant_step_index <= 1)
return -1;
return AVERROR_INVALIDDATA;
if (coding_mode_selector == 3)
coding_mode = get_bits1(gb);
@ -396,7 +402,7 @@ static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent
for (k=0; k<coded_components; k++) {
sfIndx = get_bits(gb,6);
pComponent[component_count].pos = j * 64 + (get_bits(gb,6));
max_coded_values = 1024 - pComponent[component_count].pos;
max_coded_values = SAMPLES_PER_FRAME - pComponent[component_count].pos;
coded_values = coded_values_per_component + 1;
coded_values = FFMIN(max_coded_values,coded_values);
@ -445,7 +451,7 @@ static int decodeGainControl (GetBitContext *gb, gain_block *pGb, int numBands)
pLevel[cf]= get_bits(gb,4);
pLoc [cf]= get_bits(gb,5);
if(cf && pLoc[cf] <= pLoc[cf-1])
return -1;
return AVERROR_INVALIDDATA;
}
}
@ -662,12 +668,12 @@ static int decodeChannelSoundUnit (ATRAC3Context *q, GetBitContext *gb, channel_
if (codingMode == JOINT_STEREO && channelNum == 1) {
if (get_bits(gb,2) != 3) {
av_log(NULL,AV_LOG_ERROR,"JS mono Sound Unit id != 3.\n");
return -1;
return AVERROR_INVALIDDATA;
}
} else {
if (get_bits(gb,6) != 0x28) {
av_log(NULL,AV_LOG_ERROR,"Sound Unit id != 0x28.\n");
return -1;
return AVERROR_INVALIDDATA;
}
}
@ -719,7 +725,8 @@ static int decodeChannelSoundUnit (ATRAC3Context *q, GetBitContext *gb, channel_
* @param databuf the input data
*/
static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf)
static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf,
float **out_samples)
{
int result, i;
float *p1, *p2, *p3, *p4;
@ -731,7 +738,7 @@ static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf)
/* decode Sound Unit 1 */
init_get_bits(&q->gb,databuf,q->bits_per_frame);
result = decodeChannelSoundUnit(q,&q->gb, q->pUnits, q->outSamples, 0, JOINT_STEREO);
result = decodeChannelSoundUnit(q,&q->gb, q->pUnits, out_samples[0], 0, JOINT_STEREO);
if (result != 0)
return (result);
@ -753,7 +760,7 @@ static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf)
ptr1 = q->decoded_bytes_buffer;
for (i = 4; *ptr1 == 0xF8; i++, ptr1++) {
if (i >= q->bytes_per_frame)
return -1;
return AVERROR_INVALIDDATA;
}
@ -772,14 +779,14 @@ static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf)
}
/* Decode Sound Unit 2. */
result = decodeChannelSoundUnit(q,&q->gb, &q->pUnits[1], &q->outSamples[1024], 1, JOINT_STEREO);
result = decodeChannelSoundUnit(q,&q->gb, &q->pUnits[1], out_samples[1], 1, JOINT_STEREO);
if (result != 0)
return (result);
/* Reconstruct the channel coefficients. */
reverseMatrixing(q->outSamples, &q->outSamples[1024], q->matrix_coeff_index_prev, q->matrix_coeff_index_now);
reverseMatrixing(out_samples[0], out_samples[1], q->matrix_coeff_index_prev, q->matrix_coeff_index_now);
channelWeighting(q->outSamples, &q->outSamples[1024], q->weighting_delay);
channelWeighting(out_samples[0], out_samples[1], q->weighting_delay);
} else {
/* normal stereo mode or mono */
@ -789,22 +796,21 @@ static int decodeFrame(ATRAC3Context *q, const uint8_t* databuf)
/* Set the bitstream reader at the start of a channel sound unit. */
init_get_bits(&q->gb, databuf+((i*q->bytes_per_frame)/q->channels), (q->bits_per_frame)/q->channels);
result = decodeChannelSoundUnit(q,&q->gb, &q->pUnits[i], &q->outSamples[i*1024], i, q->codingMode);
result = decodeChannelSoundUnit(q,&q->gb, &q->pUnits[i], out_samples[i], i, q->codingMode);
if (result != 0)
return (result);
}
}
/* Apply the iQMF synthesis filter. */
p1= q->outSamples;
for (i=0 ; i<q->channels ; i++) {
p1 = out_samples[i];
p2= p1+256;
p3= p2+256;
p4= p3+256;
atrac_iqmf (p1, p2, 256, p1, q->pUnits[i].delayBuf1, q->tempBuf);
atrac_iqmf (p4, p3, 256, p3, q->pUnits[i].delayBuf2, q->tempBuf);
atrac_iqmf (p1, p3, 512, p1, q->pUnits[i].delayBuf3, q->tempBuf);
p1 +=1024;
}
return 0;
@ -823,15 +829,22 @@ static int atrac3_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
ATRAC3Context *q = avctx->priv_data;
int result = 0, i;
int result = 0, out_size;
const uint8_t* databuf;
int16_t* samples = data;
float *samples_flt = data;
int16_t *samples_s16 = data;
if (buf_size < avctx->block_align) {
av_log(avctx, AV_LOG_ERROR,
"Frame too small (%d bytes). Truncated file?\n", buf_size);
*data_size = 0;
return buf_size;
return AVERROR_INVALIDDATA;
}
out_size = SAMPLES_PER_FRAME * q->channels *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
/* Check if we need to descramble and what buffer to pass on. */
@ -842,26 +855,27 @@ static int atrac3_decode_frame(AVCodecContext *avctx,
databuf = buf;
}
result = decodeFrame(q, databuf);
if (q->channels == 1 && avctx->sample_fmt == AV_SAMPLE_FMT_FLT)
result = decodeFrame(q, databuf, &samples_flt);
else
result = decodeFrame(q, databuf, q->outSamples);
if (result != 0) {
av_log(NULL,AV_LOG_ERROR,"Frame decoding error!\n");
return -1;
return result;
}
if (q->channels == 1) {
/* mono */
for (i = 0; i<1024; i++)
samples[i] = av_clip_int16(round(q->outSamples[i]));
*data_size = 1024 * sizeof(int16_t);
} else {
/* stereo */
for (i = 0; i < 1024; i++) {
samples[i*2] = av_clip_int16(round(q->outSamples[i]));
samples[i*2+1] = av_clip_int16(round(q->outSamples[1024+i]));
}
*data_size = 2048 * sizeof(int16_t);
/* interleave */
if (q->channels == 2 && avctx->sample_fmt == AV_SAMPLE_FMT_FLT) {
q->fmt_conv.float_interleave(samples_flt,
(const float **)q->outSamples,
SAMPLES_PER_FRAME, 2);
} else if (avctx->sample_fmt == AV_SAMPLE_FMT_S16) {
q->fmt_conv.float_to_int16_interleave(samples_s16,
(const float **)q->outSamples,
SAMPLES_PER_FRAME, q->channels);
}
*data_size = out_size;
return avctx->block_align;
}
@ -875,7 +889,7 @@ static int atrac3_decode_frame(AVCodecContext *avctx,
static av_cold int atrac3_decode_init(AVCodecContext *avctx)
{
int i;
int i, ret;
const uint8_t *edata_ptr = avctx->extradata;
ATRAC3Context *q = avctx->priv_data;
static VLC_TYPE atrac3_vlc_table[4096][2];
@ -899,7 +913,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
av_log(avctx,AV_LOG_DEBUG,"[12-13] %d\n",bytestream_get_le16(&edata_ptr)); //Unknown always 0
/* setup */
q->samples_per_frame = 1024 * q->channels;
q->samples_per_frame = SAMPLES_PER_FRAME * q->channels;
q->atrac3version = 4;
q->delay = 0x88E;
if (q->codingMode)
@ -912,7 +926,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
if ((q->bytes_per_frame == 96*q->channels*q->frame_factor) || (q->bytes_per_frame == 152*q->channels*q->frame_factor) || (q->bytes_per_frame == 192*q->channels*q->frame_factor)) {
} else {
av_log(avctx,AV_LOG_ERROR,"Unknown frame/channel/frame_factor configuration %d/%d/%d\n", q->bytes_per_frame, q->channels, q->frame_factor);
return -1;
return AVERROR_INVALIDDATA;
}
} else if (avctx->extradata_size == 10) {
@ -932,17 +946,17 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
if (q->atrac3version != 4) {
av_log(avctx,AV_LOG_ERROR,"Version %d != 4.\n",q->atrac3version);
return -1;
return AVERROR_INVALIDDATA;
}
if (q->samples_per_frame != 1024 && q->samples_per_frame != 2048) {
if (q->samples_per_frame != SAMPLES_PER_FRAME && q->samples_per_frame != SAMPLES_PER_FRAME*2) {
av_log(avctx,AV_LOG_ERROR,"Unknown amount of samples per frame %d.\n",q->samples_per_frame);
return -1;
return AVERROR_INVALIDDATA;
}
if (q->delay != 0x88E) {
av_log(avctx,AV_LOG_ERROR,"Unknown amount of delay %x != 0x88E.\n",q->delay);
return -1;
return AVERROR_INVALIDDATA;
}
if (q->codingMode == STEREO) {
@ -951,17 +965,17 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
av_log(avctx,AV_LOG_DEBUG,"Joint stereo detected.\n");
} else {
av_log(avctx,AV_LOG_ERROR,"Unknown channel coding mode %x!\n",q->codingMode);
return -1;
return AVERROR_INVALIDDATA;
}
if (avctx->channels <= 0 || avctx->channels > 2 /*|| ((avctx->channels * 1024) != q->samples_per_frame)*/) {
av_log(avctx,AV_LOG_ERROR,"Channel configuration error!\n");
return -1;
return AVERROR(EINVAL);
}
if(avctx->block_align >= UINT_MAX/2)
return -1;
return AVERROR(EINVAL);
/* Pad the data buffer with FF_INPUT_BUFFER_PADDING_SIZE,
* this is for the bitstream reader. */
@ -981,7 +995,16 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
vlcs_initialized = 1;
}
init_atrac3_transforms(q);
if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT)
avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
else
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if ((ret = init_atrac3_transforms(q, avctx->sample_fmt == AV_SAMPLE_FMT_FLT))) {
av_log(avctx, AV_LOG_ERROR, "Error initializing MDCT\n");
av_freep(&q->decoded_bytes_buffer);
return ret;
}
atrac_generate_tables();
@ -1007,14 +1030,23 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
}
dsputil_init(&dsp, avctx);
ff_fmt_convert_init(&q->fmt_conv, avctx);
q->pUnits = av_mallocz(sizeof(channel_unit)*q->channels);
if (!q->pUnits) {
av_free(q->decoded_bytes_buffer);
atrac3_decode_close(avctx);
return AVERROR(ENOMEM);
}
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if (avctx->channels > 1 || avctx->sample_fmt == AV_SAMPLE_FMT_S16) {
q->outSamples[0] = av_mallocz(SAMPLES_PER_FRAME * avctx->channels * sizeof(*q->outSamples[0]));
q->outSamples[1] = q->outSamples[0] + SAMPLES_PER_FRAME;
if (!q->outSamples[0]) {
atrac3_decode_close(avctx);
return AVERROR(ENOMEM);
}
}
return 0;
}
@ -1028,5 +1060,6 @@ AVCodec ff_atrac3_decoder =
.init = atrac3_decode_init,
.close = atrac3_decode_close,
.decode = atrac3_decode_frame,
.capabilities = CODEC_CAP_SUBFRAMES,
.long_name = NULL_IF_CONFIG_SMALL("Atrac 3 (Adaptive TRansform Acoustic Coding 3)"),
};

117
libavcodec/binkaudio.c
View File

@ -39,6 +39,8 @@
extern const uint16_t ff_wma_critical_freqs[25];
static float quant_table[95];
#define MAX_CHANNELS 2
#define BINK_BLOCK_MAX_SIZE (MAX_CHANNELS << 11)
@ -56,8 +58,11 @@ typedef struct {
unsigned int *bands;
float root;
DECLARE_ALIGNED(32, FFTSample, coeffs)[BINK_BLOCK_MAX_SIZE];
DECLARE_ALIGNED(16, short, previous)[BINK_BLOCK_MAX_SIZE / 16]; ///< coeffs from previous audio block
DECLARE_ALIGNED(16, int16_t, previous)[BINK_BLOCK_MAX_SIZE / 16]; ///< coeffs from previous audio block
DECLARE_ALIGNED(16, int16_t, current)[BINK_BLOCK_MAX_SIZE / 16];
float *coeffs_ptr[MAX_CHANNELS]; ///< pointers to the coeffs arrays for float_to_int16_interleave
float *prev_ptr[MAX_CHANNELS]; ///< pointers to the overlap points in the coeffs array
uint8_t *packet_buffer;
union {
RDFTContext rdft;
DCTContext dct;
@ -107,6 +112,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->block_size = (s->frame_len - s->overlap_len) * s->channels;
sample_rate_half = (sample_rate + 1) / 2;
s->root = 2.0 / sqrt(s->frame_len);
for (i = 0; i < 95; i++) {
/* constant is result of 0.066399999/log10(M_E) */
quant_table[i] = expf(i * 0.15289164787221953823f) * s->root;
}
/* calculate number of bands */
for (s->num_bands = 1; s->num_bands < 25; s->num_bands++)
@ -126,8 +135,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->first = 1;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
for (i = 0; i < s->channels; i++)
for (i = 0; i < s->channels; i++) {
s->coeffs_ptr[i] = s->coeffs + i * s->frame_len;
s->prev_ptr[i] = s->coeffs_ptr[i] + s->frame_len - s->overlap_len;
}
if (CONFIG_BINKAUDIO_RDFT_DECODER && avctx->codec->id == CODEC_ID_BINKAUDIO_RDFT)
ff_rdft_init(&s->trans.rdft, frame_len_bits, DFT_C2R);
@ -152,11 +163,18 @@ static const uint8_t rle_length_tab[16] = {
2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 32, 64
};
#define GET_BITS_SAFE(out, nbits) do { \
if (get_bits_left(gb) < nbits) \
return AVERROR_INVALIDDATA; \
out = get_bits(gb, nbits); \
} while (0)
/**
* Decode Bink Audio block
* @param[out] out Output buffer (must contain s->block_size elements)
* @return 0 on success, negative error code on failure
*/
static void decode_block(BinkAudioContext *s, short *out, int use_dct)
static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
{
int ch, i, j, k;
float q, quant[25];
@ -169,17 +187,22 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
for (ch = 0; ch < s->channels; ch++) {
FFTSample *coeffs = s->coeffs_ptr[ch];
if (s->version_b) {
if (get_bits_left(gb) < 64)
return AVERROR_INVALIDDATA;
coeffs[0] = av_int2flt(get_bits(gb, 32)) * s->root;
coeffs[1] = av_int2flt(get_bits(gb, 32)) * s->root;
} else {
if (get_bits_left(gb) < 58)
return AVERROR_INVALIDDATA;
coeffs[0] = get_float(gb) * s->root;
coeffs[1] = get_float(gb) * s->root;
}
if (get_bits_left(gb) < s->num_bands * 8)
return AVERROR_INVALIDDATA;
for (i = 0; i < s->num_bands; i++) {
/* constant is result of 0.066399999/log10(M_E) */
int value = get_bits(gb, 8);
quant[i] = expf(FFMIN(value, 95) * 0.15289164787221953823f) * s->root;
quant[i] = quant_table[FFMIN(value, 95)];
}
k = 0;
@ -190,15 +213,20 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
while (i < s->frame_len) {
if (s->version_b) {
j = i + 16;
} else if (get_bits1(gb)) {
j = i + rle_length_tab[get_bits(gb, 4)] * 8;
} else {
j = i + 8;
int v;
GET_BITS_SAFE(v, 1);
if (v) {
GET_BITS_SAFE(v, 4);
j = i + rle_length_tab[v] * 8;
} else {
j = i + 8;
}
}
j = FFMIN(j, s->frame_len);
width = get_bits(gb, 4);
GET_BITS_SAFE(width, 4);
if (width == 0) {
memset(coeffs + i, 0, (j - i) * sizeof(*coeffs));
i = j;
@ -208,9 +236,11 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
while (i < j) {
if (s->bands[k] == i)
q = quant[k++];
coeff = get_bits(gb, width);
GET_BITS_SAFE(coeff, width);
if (coeff) {
if (get_bits1(gb))
int v;
GET_BITS_SAFE(v, 1);
if (v)
coeffs[i] = -q * coeff;
else
coeffs[i] = q * coeff;
@ -231,8 +261,12 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
s->trans.rdft.rdft_calc(&s->trans.rdft, coeffs);
}
s->fmt_conv.float_to_int16_interleave(s->current,
(const float **)s->prev_ptr,
s->overlap_len, s->channels);
s->fmt_conv.float_to_int16_interleave(out, (const float **)s->coeffs_ptr,
s->frame_len, s->channels);
s->frame_len - s->overlap_len,
s->channels);
if (!s->first) {
int count = s->overlap_len * s->channels;
@ -242,16 +276,19 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
}
}
memcpy(s->previous, out + s->block_size,
s->overlap_len * s->channels * sizeof(*out));
memcpy(s->previous, s->current,
s->overlap_len * s->channels * sizeof(*s->previous));
s->first = 0;
return 0;
}
static av_cold int decode_end(AVCodecContext *avctx)
{
BinkAudioContext * s = avctx->priv_data;
av_freep(&s->bands);
av_freep(&s->packet_buffer);
if (CONFIG_BINKAUDIO_RDFT_DECODER && avctx->codec->id == CODEC_ID_BINKAUDIO_RDFT)
ff_rdft_end(&s->trans.rdft);
else if (CONFIG_BINKAUDIO_DCT_DECODER)
@ -270,25 +307,47 @@ static int decode_frame(AVCodecContext *avctx,
AVPacket *avpkt)
{
BinkAudioContext *s = avctx->priv_data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
short *samples = data;
short *samples_end = (short*)((uint8_t*)data + *data_size);
int reported_size;
int16_t *samples = data;
GetBitContext *gb = &s->gb;
int out_size, consumed = 0;
init_get_bits(gb, buf, buf_size * 8);
if (!get_bits_left(gb)) {
uint8_t *buf;
/* handle end-of-stream */
if (!avpkt->size) {
*data_size = 0;
return 0;
}
if (avpkt->size < 4) {
av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
return AVERROR_INVALIDDATA;
}
buf = av_realloc(s->packet_buffer, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!buf)
return AVERROR(ENOMEM);
s->packet_buffer = buf;
memcpy(s->packet_buffer, avpkt->data, avpkt->size);
init_get_bits(gb, s->packet_buffer, avpkt->size * 8);
consumed = avpkt->size;
reported_size = get_bits_long(gb, 32);
while (get_bits_count(gb) / 8 < buf_size &&
samples + s->block_size <= samples_end) {
decode_block(s, samples, avctx->codec->id == CODEC_ID_BINKAUDIO_DCT);
samples += s->block_size;
get_bits_align32(gb);
/* skip reported size */
skip_bits_long(gb, 32);
}
*data_size = FFMIN(reported_size, (uint8_t*)samples - (uint8_t*)data);
return buf_size;
out_size = s->block_size * av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
if (decode_block(s, samples, avctx->codec->id == CODEC_ID_BINKAUDIO_DCT)) {
av_log(avctx, AV_LOG_ERROR, "Incomplete packet\n");
return AVERROR_INVALIDDATA;
}
get_bits_align32(gb);
*data_size = out_size;
return consumed;
}
AVCodec ff_binkaudio_rdft_decoder = {
@ -299,6 +358,7 @@ AVCodec ff_binkaudio_rdft_decoder = {
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DELAY,
.long_name = NULL_IF_CONFIG_SMALL("Bink Audio (RDFT)")
};
@ -310,5 +370,6 @@ AVCodec ff_binkaudio_dct_decoder = {
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DELAY,
.long_name = NULL_IF_CONFIG_SMALL("Bink Audio (DCT)")
};

138
libavcodec/cook.c
View File

@ -42,12 +42,7 @@
* available.
*/
#include <math.h>
#include <stddef.h>
#include <stdio.h>
#include "libavutil/lfg.h"
#include "libavutil/random_seed.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
@ -124,7 +119,7 @@ typedef struct cook {
void (* interpolate) (struct cook *q, float* buffer,
int gain_index, int gain_index_next);
void (* saturate_output) (struct cook *q, int chan, int16_t *out);
void (* saturate_output) (struct cook *q, int chan, float *out);
AVCodecContext* avctx;
GetBitContext gb;
@ -217,11 +212,11 @@ static av_cold int init_cook_vlc_tables(COOKContext *q) {
}
static av_cold int init_cook_mlt(COOKContext *q) {
int j;
int j, ret;
int mlt_size = q->samples_per_channel;
if ((q->mlt_window = av_malloc(sizeof(float)*mlt_size)) == 0)
return -1;
if ((q->mlt_window = av_malloc(mlt_size * sizeof(*q->mlt_window))) == 0)
return AVERROR(ENOMEM);
/* Initialize the MLT window: simple sine window. */
ff_sine_window_init(q->mlt_window, mlt_size);
@ -229,9 +224,9 @@ static av_cold int init_cook_mlt(COOKContext *q) {
q->mlt_window[j] *= sqrt(2.0 / q->samples_per_channel);
/* Initialize the MDCT. */
if (ff_mdct_init(&q->mdct_ctx, av_log2(mlt_size)+1, 1, 1.0)) {
av_free(q->mlt_window);
return -1;
if ((ret = ff_mdct_init(&q->mdct_ctx, av_log2(mlt_size)+1, 1, 1.0/32768.0))) {
av_free(q->mlt_window);
return ret;
}
av_log(q->avctx,AV_LOG_DEBUG,"MDCT initialized, order = %d.\n",
av_log2(mlt_size)+1);
@ -410,9 +405,9 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
//av_log(q->avctx, AV_LOG_ERROR, "bits_left = %d\n",bits_left);
}
memset(&exp_index1,0,102*sizeof(int));
memset(&exp_index2,0,102*sizeof(int));
memset(&tmp_categorize_array,0,128*2*sizeof(int));
memset(&exp_index1, 0, sizeof(exp_index1));
memset(&exp_index2, 0, sizeof(exp_index2));
memset(&tmp_categorize_array, 0, sizeof(tmp_categorize_array));
bias=-32;
@ -633,8 +628,8 @@ static void mono_decode(COOKContext *q, COOKSubpacket *p, float* mlt_buffer) {
int quant_index_table[102];
int category[128];
memset(&category, 0, 128*sizeof(int));
memset(&category_index, 0, 128*sizeof(int));
memset(&category, 0, sizeof(category));
memset(&category_index, 0, sizeof(category_index));
decode_envelope(q, p, quant_index_table);
q->num_vectors = get_bits(&q->gb,p->log2_numvector_size);
@ -663,14 +658,12 @@ static void interpolate_float(COOKContext *q, float* buffer,
for(i=0 ; i<q->gain_size_factor ; i++){
buffer[i]*=fc1;
}
return;
} else { //smooth gain
fc2 = q->gain_table[11 + (gain_index_next-gain_index)];
for(i=0 ; i<q->gain_size_factor ; i++){
buffer[i]*=fc1;
fc1*=fc2;
}
return;
}
}
@ -733,7 +726,8 @@ static void imlt_gain(COOKContext *q, float *inbuffer,
}
/* Save away the current to be previous block. */
memcpy(previous_buffer, buffer0, sizeof(float)*q->samples_per_channel);
memcpy(previous_buffer, buffer0,
q->samples_per_channel * sizeof(*previous_buffer));
}
@ -744,27 +738,24 @@ static void imlt_gain(COOKContext *q, float *inbuffer,
* @param decouple_tab decoupling array
*
*/
static void decouple_info(COOKContext *q, COOKSubpacket *p, int *decouple_tab)
{
int i;
int vlc = get_bits1(&q->gb);
int start = cplband[p->js_subband_start];
int end = cplband[p->subbands-1];
int length = end - start + 1;
static void decouple_info(COOKContext *q, COOKSubpacket *p, int* decouple_tab){
int length, i;
if(get_bits1(&q->gb)) {
if(cplband[p->js_subband_start] > cplband[p->subbands-1]) return;
length = cplband[p->subbands-1] - cplband[p->js_subband_start] + 1;
for (i=0 ; i<length ; i++) {
decouple_tab[cplband[p->js_subband_start] + i] = get_vlc2(&q->gb, p->ccpl.table, p->ccpl.bits, 2);
}
if (start > end)
return;
}
if(cplband[p->js_subband_start] > cplband[p->subbands-1]) return;
length = cplband[p->subbands-1] - cplband[p->js_subband_start] + 1;
for (i=0 ; i<length ; i++) {
decouple_tab[cplband[p->js_subband_start] + i] = get_bits(&q->gb, p->js_vlc_bits);
if (vlc) {
for (i = 0; i < length; i++)
decouple_tab[start + i] = get_vlc2(&q->gb, p->ccpl.table, p->ccpl.bits, 2);
} else {
for (i = 0; i < length; i++)
decouple_tab[start + i] = get_bits(&q->gb, p->js_vlc_bits);
}
return;
}
/*
@ -811,11 +802,11 @@ static void joint_decode(COOKContext *q, COOKSubpacket *p, float* mlt_buffer1,
const float* cplscale;
memset(decouple_tab, 0, sizeof(decouple_tab));
memset(decode_buffer, 0, sizeof(decode_buffer));
memset(decode_buffer, 0, sizeof(q->decode_buffer_0));
/* Make sure the buffers are zeroed out. */
memset(mlt_buffer1,0, 1024*sizeof(float));
memset(mlt_buffer2,0, 1024*sizeof(float));
memset(mlt_buffer1, 0, 1024 * sizeof(*mlt_buffer1));
memset(mlt_buffer2, 0, 1024 * sizeof(*mlt_buffer2));
decouple_info(q, p, decouple_tab);
mono_decode(q, p, decode_buffer);
@ -867,22 +858,18 @@ decode_bytes_and_gain(COOKContext *q, COOKSubpacket *p, const uint8_t *inbuffer,
}
/**
* Saturate the output signal to signed 16bit integers.
* Saturate the output signal and interleave.
*
* @param q pointer to the COOKContext
* @param chan channel to saturate
* @param out pointer to the output vector
*/
static void
saturate_output_float (COOKContext *q, int chan, int16_t *out)
static void saturate_output_float(COOKContext *q, int chan, float *out)
{
int j;
float *output = q->mono_mdct_output + q->samples_per_channel;
/* Clip and convert floats to 16 bits.
*/
for (j = 0; j < q->samples_per_channel; j++) {
out[chan + q->nb_channels * j] =
av_clip_int16(lrintf(output[j]));
out[chan + q->nb_channels * j] = av_clipf(output[j], -1.0, 1.0);
}
}
@ -902,7 +889,7 @@ saturate_output_float (COOKContext *q, int chan, int16_t *out)
static inline void
mlt_compensate_output(COOKContext *q, float *decode_buffer,
cook_gains *gains_ptr, float *previous_buffer,
int16_t *out, int chan)
float *out, int chan)
{
imlt_gain(q, decode_buffer, gains_ptr, previous_buffer);
q->saturate_output (q, chan, out);
@ -917,7 +904,9 @@ mlt_compensate_output(COOKContext *q, float *decode_buffer,
* @param inbuffer pointer to the inbuffer
* @param outbuffer pointer to the outbuffer
*/
static void decode_subpacket(COOKContext *q, COOKSubpacket* p, const uint8_t *inbuffer, int16_t *outbuffer) {
static void decode_subpacket(COOKContext *q, COOKSubpacket *p,
const uint8_t *inbuffer, float *outbuffer)
{
int sub_packet_size = p->size;
/* packet dump */
// for (i=0 ; i<sub_packet_size ; i++) {
@ -966,13 +955,20 @@ static int cook_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
COOKContext *q = avctx->priv_data;
int i;
int i, out_size;
int offset = 0;
int chidx = 0;
if (buf_size < avctx->block_align)
return buf_size;
out_size = q->nb_channels * q->samples_per_channel *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
/* estimate subpacket sizes */
q->subpacket[0].size = avctx->block_align;
@ -981,22 +977,21 @@ static int cook_decode_frame(AVCodecContext *avctx,
q->subpacket[0].size -= q->subpacket[i].size + 1;
if (q->subpacket[0].size < 0) {
av_log(avctx,AV_LOG_DEBUG,"frame subpacket size total > avctx->block_align!\n");
return -1;
return AVERROR_INVALIDDATA;
}
}
/* decode supbackets */
*data_size = 0;
for(i=0;i<q->num_subpackets;i++){
q->subpacket[i].bits_per_subpacket = (q->subpacket[i].size*8)>>q->subpacket[i].bits_per_subpdiv;
q->subpacket[i].ch_idx = chidx;
av_log(avctx,AV_LOG_DEBUG,"subpacket[%i] size %i js %i %i block_align %i\n",i,q->subpacket[i].size,q->subpacket[i].joint_stereo,offset,avctx->block_align);
decode_subpacket(q, &q->subpacket[i], buf + offset, (int16_t*)data);
decode_subpacket(q, &q->subpacket[i], buf + offset, data);
offset += q->subpacket[i].size;
chidx += q->subpacket[i].num_channels;
av_log(avctx,AV_LOG_DEBUG,"subpacket[%i] %i %i\n",i,q->subpacket[i].size * 8,get_bits_count(&q->gb));
}
*data_size = sizeof(int16_t) * q->nb_channels * q->samples_per_channel;
*data_size = out_size;
/* Discard the first two frames: no valid audio. */
if (avctx->frame_number < 2) *data_size = 0;
@ -1053,12 +1048,13 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
int extradata_size = avctx->extradata_size;
int s = 0;
unsigned int channel_mask = 0;
int ret;
q->avctx = avctx;
/* Take care of the codec specific extradata. */
if (extradata_size <= 0) {
av_log(avctx,AV_LOG_ERROR,"Necessary extradata missing!\n");
return -1;
return AVERROR_INVALIDDATA;
}
av_log(avctx,AV_LOG_DEBUG,"codecdata_length=%d\n",avctx->extradata_size);
@ -1103,7 +1099,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
case MONO:
if (q->nb_channels != 1) {
av_log_ask_for_sample(avctx, "Container channels != 1.\n");
return -1;
return AVERROR_PATCHWELCOME;
}
av_log(avctx,AV_LOG_DEBUG,"MONO\n");
break;
@ -1117,7 +1113,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
case JOINT_STEREO:
if (q->nb_channels != 2) {
av_log_ask_for_sample(avctx, "Container channels != 2.\n");
return -1;
return AVERROR_PATCHWELCOME;
}
av_log(avctx,AV_LOG_DEBUG,"JOINT_STEREO\n");
if (avctx->extradata_size >= 16){
@ -1155,12 +1151,12 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
break;
default:
av_log_ask_for_sample(avctx, "Unknown Cook version.\n");
return -1;
return AVERROR_PATCHWELCOME;
}
if(s > 1 && q->subpacket[s].samples_per_channel != q->samples_per_channel) {
av_log(avctx,AV_LOG_ERROR,"different number of samples per channel!\n");
return -1;
return AVERROR_INVALIDDATA;
} else
q->samples_per_channel = q->subpacket[0].samples_per_channel;
@ -1171,18 +1167,18 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
/* Try to catch some obviously faulty streams, othervise it might be exploitable */
if (q->subpacket[s].total_subbands > 53) {
av_log_ask_for_sample(avctx, "total_subbands > 53\n");
return -1;
return AVERROR_PATCHWELCOME;
}
if ((q->subpacket[s].js_vlc_bits > 6) || (q->subpacket[s].js_vlc_bits < 2*q->subpacket[s].joint_stereo)) {
av_log(avctx,AV_LOG_ERROR,"js_vlc_bits = %d, only >= %d and <= 6 allowed!\n",
q->subpacket[s].js_vlc_bits, 2*q->subpacket[s].joint_stereo);
return -1;
return AVERROR_INVALIDDATA;
}
if (q->subpacket[s].subbands > 50) {
av_log_ask_for_sample(avctx, "subbands > 50\n");
return -1;
return AVERROR_PATCHWELCOME;
}
q->subpacket[s].gains1.now = q->subpacket[s].gain_1;
q->subpacket[s].gains1.previous = q->subpacket[s].gain_2;
@ -1193,7 +1189,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
s++;
if (s > MAX_SUBPACKETS) {
av_log_ask_for_sample(avctx, "Too many subpackets > 5\n");
return -1;
return AVERROR_PATCHWELCOME;
}
}
/* Generate tables */
@ -1201,12 +1197,12 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
init_gain_table(q);
init_cplscales_table(q);
if (init_cook_vlc_tables(q) != 0)
return -1;
if ((ret = init_cook_vlc_tables(q)))
return ret;
if(avctx->block_align >= UINT_MAX/2)
return -1;
return AVERROR(EINVAL);
/* Pad the databuffer with:
DECODE_BYTES_PAD1 or DECODE_BYTES_PAD2 for decode_bytes(),
@ -1216,11 +1212,11 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
+ DECODE_BYTES_PAD1(avctx->block_align)
+ FF_INPUT_BUFFER_PADDING_SIZE);
if (q->decoded_bytes_buffer == NULL)
return -1;
return AVERROR(ENOMEM);
/* Initialize transform. */
if ( init_cook_mlt(q) != 0 )
return -1;
if ((ret = init_cook_mlt(q)))
return ret;
/* Initialize COOK signal arithmetic handling */
if (1) {
@ -1237,10 +1233,10 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
av_log_ask_for_sample(avctx,
"unknown amount of samples_per_channel = %d\n",
q->samples_per_channel);
return -1;
return AVERROR_PATCHWELCOME;
}
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
if (channel_mask)
avctx->channel_layout = channel_mask;
else

64
libavcodec/dca.c
View File

@ -528,15 +528,15 @@ static int dca_parse_frame_header(DCAContext * s)
s->sample_blocks = get_bits(&s->gb, 7) + 1;
s->frame_size = get_bits(&s->gb, 14) + 1;
if (s->frame_size < 95)
return -1;
return AVERROR_INVALIDDATA;
s->amode = get_bits(&s->gb, 6);
s->sample_rate = dca_sample_rates[get_bits(&s->gb, 4)];
if (!s->sample_rate)
return -1;
return AVERROR_INVALIDDATA;
s->bit_rate_index = get_bits(&s->gb, 5);
s->bit_rate = dca_bit_rates[s->bit_rate_index];
if (!s->bit_rate)
return -1;
return AVERROR_INVALIDDATA;
s->downmix = get_bits(&s->gb, 1);
s->dynrange = get_bits(&s->gb, 1);
@ -626,7 +626,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index
int j, k;
if (get_bits_left(&s->gb) < 0)
return -1;
return AVERROR_INVALIDDATA;
if (!base_channel) {
s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1;
@ -658,7 +658,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index
else if (s->bitalloc_huffman[j] == 7) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid bit allocation index\n");
return -1;
return AVERROR_INVALIDDATA;
} else {
s->bitalloc[j][k] =
get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]);
@ -667,7 +667,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index
if (s->bitalloc[j][k] > 26) {
// av_log(s->avctx,AV_LOG_DEBUG,"bitalloc index [%i][%i] too big (%i)\n",
// j, k, s->bitalloc[j][k]);
return -1;
return AVERROR_INVALIDDATA;
}
}
}
@ -685,7 +685,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index
}
if (get_bits_left(&s->gb) < 0)
return -1;
return AVERROR_INVALIDDATA;
for (j = base_channel; j < s->prim_channels; j++) {
const uint32_t *scale_table;
@ -723,7 +723,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index
}
if (get_bits_left(&s->gb) < 0)
return -1;
return AVERROR_INVALIDDATA;
/* Scale factors for joint subband coding */
for (j = base_channel; j < s->prim_channels; j++) {
@ -1055,7 +1055,7 @@ static int decode_blockcode(int code, int levels, int *values)
return 0;
else {
av_log(NULL, AV_LOG_ERROR, "ERROR: block code look-up failed\n");
return -1;
return AVERROR_INVALIDDATA;
}
}
#endif
@ -1096,7 +1096,7 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index)
for (k = base_channel; k < s->prim_channels; k++) {
if (get_bits_left(&s->gb) < 0)
return -1;
return AVERROR_INVALIDDATA;
for (l = 0; l < s->vq_start_subband[k]; l++) {
int m;
@ -1275,12 +1275,13 @@ static int dca_subframe_footer(DCAContext * s, int base_channel)
static int dca_decode_block(DCAContext * s, int base_channel, int block_index)
{
int ret;
/* Sanity check */
if (s->current_subframe >= s->subframes) {
av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i",
s->current_subframe, s->subframes);
return -1;
return AVERROR_INVALIDDATA;
}
if (!s->current_subsubframe) {
@ -1288,16 +1289,16 @@ static int dca_decode_block(DCAContext * s, int base_channel, int block_index)
av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n");
#endif
/* Read subframe header */
if (dca_subframe_header(s, base_channel, block_index))
return -1;
if ((ret = dca_subframe_header(s, base_channel, block_index)))
return ret;
}
/* Read subsubframe */
#ifdef TRACE
av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n");
#endif
if (dca_subsubframe(s, base_channel, block_index))
return -1;
if ((ret = dca_subsubframe(s, base_channel, block_index)))
return ret;
/* Update state */
s->current_subsubframe++;
@ -1310,8 +1311,8 @@ static int dca_decode_block(DCAContext * s, int base_channel, int block_index)
av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n");
#endif
/* Read subframe footer */
if (dca_subframe_footer(s, base_channel))
return -1;
if ((ret = dca_subframe_footer(s, base_channel)))
return ret;
}
return 0;
@ -1354,7 +1355,7 @@ static int dca_convert_bitstream(const uint8_t * src, int src_size, uint8_t * ds
flush_put_bits(&pb);
return (put_bits_count(&pb) + 7) >> 3;
default:
return -1;
return AVERROR_INVALIDDATA;
}
}
@ -1637,7 +1638,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
int lfe_samples;
int num_core_channels = 0;
int i;
int i, ret;
float *samples_flt = data;
int16_t *samples_s16 = data;
int out_size;
@ -1650,16 +1651,15 @@ static int dca_decode_frame(AVCodecContext * avctx,
s->dca_buffer_size = dca_convert_bitstream(buf, buf_size, s->dca_buffer,
DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE);
if (s->dca_buffer_size == -1) {
if (s->dca_buffer_size == AVERROR_INVALIDDATA) {
av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n");
return -1;
return AVERROR_INVALIDDATA;
}
init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
if (dca_parse_frame_header(s) < 0) {
if ((ret = dca_parse_frame_header(s)) < 0) {
//seems like the frame is corrupt, try with the next one
*data_size=0;
return buf_size;
return ret;
}
//set AVCodec values with parsed data
avctx->sample_rate = s->sample_rate;
@ -1669,7 +1669,10 @@ static int dca_decode_frame(AVCodecContext * avctx,
s->profile = FF_PROFILE_DTS;
for (i = 0; i < (s->sample_blocks / 8); i++) {
dca_decode_block(s, 0, i);
if ((ret = dca_decode_block(s, 0, i))) {
av_log(avctx, AV_LOG_ERROR, "error decoding block\n");
return ret;
}
}
/* record number of core channels incase less than max channels are requested */
@ -1725,7 +1728,10 @@ static int dca_decode_frame(AVCodecContext * avctx,
dca_parse_audio_coding_header(s, s->xch_base_channel);
for (i = 0; i < (s->sample_blocks / 8); i++) {
dca_decode_block(s, s->xch_base_channel, i);
if ((ret = dca_decode_block(s, s->xch_base_channel, i))) {
av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n");
continue;
}
}
s->xch_present = 1;
@ -1799,7 +1805,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
if (channels > !!s->lfe &&
s->channel_order_tab[channels - 1 - !!s->lfe] < 0)
return -1;
return AVERROR_INVALIDDATA;
if (avctx->request_channels == 2 && s->prim_channels > 2) {
channels = 2;
@ -1812,7 +1818,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
}
} else {
av_log(avctx, AV_LOG_ERROR, "Non standard configuration %d !\n",s->amode);
return -1;
return AVERROR_INVALIDDATA;
}
if (avctx->channels != channels) {
@ -1824,7 +1830,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
out_size = 256 / 8 * s->sample_blocks * channels *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size)
return -1;
return AVERROR(EINVAL);
*data_size = out_size;
/* filter to get final output */

42
libavcodec/dsicinav.c
View File

@ -26,6 +26,7 @@
#include "avcodec.h"
#include "bytestream.h"
#include "mathops.h"
typedef enum CinVideoBitmapIndex {
@ -43,7 +44,6 @@ typedef struct CinVideoContext {
} CinVideoContext;
typedef struct CinAudioContext {
AVCodecContext *avctx;
int initial_decode_frame;
int delta;
} CinAudioContext;
@ -309,7 +309,11 @@ static av_cold int cinaudio_decode_init(AVCodecContext *avctx)
{
CinAudioContext *cin = avctx->priv_data;
cin->avctx = avctx;
if (avctx->channels != 1) {
av_log_ask_for_sample(avctx, "Number of channels is not supported\n");
return AVERROR_PATCHWELCOME;
}
cin->initial_decode_frame = 1;
cin->delta = 0;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
@ -322,29 +326,35 @@ static int cinaudio_decode_frame(AVCodecContext *avctx,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
CinAudioContext *cin = avctx->priv_data;
const uint8_t *src = buf;
int16_t *samples = (int16_t *)data;
const uint8_t *buf_end = buf + avpkt->size;
int16_t *samples = data;
int delta, out_size;
buf_size = FFMIN(buf_size, *data_size/2);
out_size = (avpkt->size - cin->initial_decode_frame) *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
delta = cin->delta;
if (cin->initial_decode_frame) {
cin->initial_decode_frame = 0;
cin->delta = (int16_t)AV_RL16(src); src += 2;
*samples++ = cin->delta;
buf_size -= 2;
delta = sign_extend(AV_RL16(buf), 16);
buf += 2;
*samples++ = delta;
}
while (buf_size > 0) {
cin->delta += cinaudio_delta16_table[*src++];
cin->delta = av_clip_int16(cin->delta);
*samples++ = cin->delta;
--buf_size;
while (buf < buf_end) {
delta += cinaudio_delta16_table[*buf++];
delta = av_clip_int16(delta);
*samples++ = delta;
}
cin->delta = delta;
*data_size = (uint8_t *)samples - (uint8_t *)data;
*data_size = out_size;
return src - buf;
return avpkt->size;
}

3
libavcodec/flacdec.c
View File

@ -587,7 +587,8 @@ static int flac_decode_frame(AVCodecContext *avctx,
bytes_read = (get_bits_count(&s->gb)+7)/8;
/* check if allocated data size is large enough for output */
output_size = s->blocksize * s->channels * (s->is32 ? 4 : 2);
output_size = s->blocksize * s->channels *
av_get_bytes_per_sample(avctx->sample_fmt);
if (output_size > alloc_data_size) {
av_log(s->avctx, AV_LOG_ERROR, "output data size is larger than "
"allocated data size\n");

4
libavcodec/h264.c
View File

@ -1815,7 +1815,7 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_ty
static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
for(i = 0; i < 16; i++)
dctcoef_set(h->mb+p*256, pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
dctcoef_set(h->mb+(p*256 << pixel_shift), pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
}
}
}else
@ -2033,7 +2033,7 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, i
}
if (chroma422) {
for(i=j*16+4; i<j*16+8; i++){
if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
if(h->non_zero_count_cache[ scan8[i+4] ] || dctcoef_get(h->mb, pixel_shift, i*16))
idct_add (dest[j-1] + block_offset[i+4], h->mb + (i*16 << pixel_shift), uvlinesize);
}
}

53
libavcodec/utvideo.c
View File

@ -66,7 +66,7 @@ static int huff_cmp(const void *a, const void *b)
return (aa->len - bb->len)*256 + aa->sym - bb->sym;
}
static int build_huff(const uint8_t *src, VLC *vlc)
static int build_huff(const uint8_t *src, VLC *vlc, int *fsym)
{
int i;
HuffEntry he[256];
@ -76,13 +76,18 @@ static int build_huff(const uint8_t *src, VLC *vlc)
uint8_t syms[256];
uint32_t code;
*fsym = -1;
for (i = 0; i < 256; i++) {
he[i].sym = i;
he[i].len = *src++;
}
qsort(he, 256, sizeof(*he), huff_cmp);
if (!he[0].len || he[0].len > 32)
if (!he[0].len) {
*fsym = he[0].sym;
return 0;
}
if (he[0].len > 32)
return -1;
last = 255;
@ -112,12 +117,37 @@ static int decode_plane(UtvideoContext *c, int plane_no,
int sstart, send;
VLC vlc;
GetBitContext gb;
int prev;
int prev, fsym;
const int cmask = ~(!plane_no && c->avctx->pix_fmt == PIX_FMT_YUV420P);
if (build_huff(src, &vlc)) {
if (build_huff(src, &vlc, &fsym)) {
av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n");
return AVERROR_INVALIDDATA;
}
if (fsym >= 0) { // build_huff reported a symbol to fill slices with
send = 0;
for (slice = 0; slice < c->slices; slice++) {
uint8_t *dest;
sstart = send;
send = (height * (slice + 1) / c->slices) & cmask;
dest = dst + sstart * stride;
prev = 0x80;
for (j = sstart; j < send; j++) {
for (i = 0; i < width * step; i += step) {
pix = fsym;
if (use_pred) {
prev += pix;
pix = prev;
}
dest[i] = pix;
}
dest += stride;
}
}
return 0;
}
src += 256;
src_size -= 256;
@ -128,7 +158,7 @@ static int decode_plane(UtvideoContext *c, int plane_no,
int slice_data_start, slice_data_end, slice_size;
sstart = send;
send = height * (slice + 1) / c->slices;
send = (height * (slice + 1) / c->slices) & cmask;
dest = dst + sstart * stride;
// slice offset and size validation was done earlier
@ -204,16 +234,17 @@ static void restore_rgb_planes(uint8_t *src, int step, int stride, int width, in
}
static void restore_median(uint8_t *src, int step, int stride,
int width, int height, int slices)
int width, int height, int slices, int rmode)
{
int i, j, slice;
int A, B, C;
uint8_t *bsrc;
int slice_start, slice_height;
const int cmask = ~rmode;
for (slice = 0; slice < slices; slice++) {
slice_start = (slice * height) / slices;
slice_height = ((slice + 1) * height) / slices - slice_start;
slice_start = ((slice * height) / slices) & cmask;
slice_height = ((((slice + 1) * height) / slices) & cmask) - slice_start;
bsrc = src + slice_start * stride;
@ -337,7 +368,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
if (c->frame_pred == PRED_MEDIAN)
restore_median(c->pic.data[0] + rgb_order[i], c->planes,
c->pic.linesize[0], avctx->width, avctx->height,
c->slices);
c->slices, 0);
}
restore_rgb_planes(c->pic.data[0], c->planes, c->pic.linesize[0],
avctx->width, avctx->height);
@ -353,7 +384,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
if (c->frame_pred == PRED_MEDIAN)
restore_median(c->pic.data[i], 1, c->pic.linesize[i],
avctx->width >> !!i, avctx->height >> !!i,
c->slices);
c->slices, !i);
}
break;
case PIX_FMT_YUV422P:
@ -366,7 +397,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
return ret;
if (c->frame_pred == PRED_MEDIAN)
restore_median(c->pic.data[i], 1, c->pic.linesize[i],
avctx->width >> !!i, avctx->height, c->slices);
avctx->width >> !!i, avctx->height, c->slices, 0);
}
break;
}

52
libavcodec/vp3.c
View File

@ -45,6 +45,7 @@
#define FRAGMENT_PIXELS 8
static av_cold int vp3_decode_end(AVCodecContext *avctx);
static void vp3_decode_flush(AVCodecContext *avctx);
//FIXME split things out into their own arrays
typedef struct Vp3Fragment {
@ -890,7 +891,7 @@ static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
/* decode a VLC into a token */
token = get_vlc2(gb, vlc_table, 11, 3);
/* use the token to get a zero run, a coefficient, and an eob run */
if (token <= 6) {
if ((unsigned) token <= 6U) {
eob_run = eob_run_base[token];
if (eob_run_get_bits[token])
eob_run += get_bits(gb, eob_run_get_bits[token]);
@ -908,7 +909,7 @@ static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
coeff_i += eob_run;
eob_run = 0;
}
} else {
} else if (token >= 0) {
bits_to_get = coeff_get_bits[token];
if (bits_to_get)
bits_to_get = get_bits(gb, bits_to_get);
@ -942,6 +943,10 @@ static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
for (i = coeff_index+1; i <= coeff_index+zero_run; i++)
s->num_coded_frags[plane][i]--;
coeff_i++;
} else {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid token %d\n", token);
return -1;
}
}
@ -991,6 +996,8 @@ static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb)
/* unpack the Y plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
0, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
/* reverse prediction of the Y-plane DC coefficients */
reverse_dc_prediction(s, 0, s->fragment_width[0], s->fragment_height[0]);
@ -998,8 +1005,12 @@ static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb)
/* unpack the C plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
1, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
2, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
/* reverse prediction of the C-plane DC coefficients */
if (!(s->avctx->flags & CODEC_FLAG_GRAY))
@ -1036,11 +1047,17 @@ static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb)
for (i = 1; i <= 63; i++) {
residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
0, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
1, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
2, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
}
return 0;
@ -1777,10 +1794,15 @@ static int vp3_update_thread_context(AVCodecContext *dst, const AVCodecContext *
Vp3DecodeContext *s = dst->priv_data, *s1 = src->priv_data;
int qps_changed = 0, i, err;
#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
if (!s1->current_frame.data[0]
||s->width != s1->width
||s->height!= s1->height)
||s->height!= s1->height) {
if (s != s1)
copy_fields(s, s1, golden_frame, current_frame);
return -1;
}
if (s != s1) {
// init tables if the first frame hasn't been decoded
@ -1796,8 +1818,6 @@ static int vp3_update_thread_context(AVCodecContext *dst, const AVCodecContext *
memcpy(s->motion_val[1], s1->motion_val[1], c_fragment_count * sizeof(*s->motion_val[1]));
}
#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
// copy previous frame data
copy_fields(s, s1, golden_frame, dsp);
@ -1990,9 +2010,6 @@ static av_cold int vp3_decode_end(AVCodecContext *avctx)
Vp3DecodeContext *s = avctx->priv_data;
int i;
if (avctx->is_copy && !s->current_frame.data[0])
return 0;
av_free(s->superblock_coding);
av_free(s->all_fragments);
av_free(s->coded_fragment_list[0]);
@ -2339,6 +2356,23 @@ static void vp3_decode_flush(AVCodecContext *avctx)
ff_thread_release_buffer(avctx, &s->current_frame);
}
static int vp3_init_thread_copy(AVCodecContext *avctx)
{
Vp3DecodeContext *s = avctx->priv_data;
s->superblock_coding = NULL;
s->all_fragments = NULL;
s->coded_fragment_list[0] = NULL;
s->dct_tokens_base = NULL;
s->superblock_fragments = NULL;
s->macroblock_coding = NULL;
s->motion_val[0] = NULL;
s->motion_val[1] = NULL;
s->edge_emu_buffer = NULL;
return 0;
}
AVCodec ff_theora_decoder = {
.name = "theora",
.type = AVMEDIA_TYPE_VIDEO,
@ -2350,6 +2384,7 @@ AVCodec ff_theora_decoder = {
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
.flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("Theora"),
.init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
#endif
@ -2365,5 +2400,6 @@ AVCodec ff_vp3_decoder = {
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
.flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
.init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};

48
libavcodec/vp8.c
View File

@ -50,7 +50,8 @@ static int vp8_alloc_frame(VP8Context *s, AVFrame *f)
int ret;
if ((ret = ff_thread_get_buffer(s->avctx, f)) < 0)
return ret;
if (!s->maps_are_invalid && s->num_maps_to_be_freed) {
if (s->num_maps_to_be_freed) {
assert(!s->maps_are_invalid);
f->ref_index[0] = s->segmentation_maps[--s->num_maps_to_be_freed];
} else if (!(f->ref_index[0] = av_mallocz(s->mb_width * s->mb_height))) {
ff_thread_release_buffer(s->avctx, f);
@ -59,39 +60,50 @@ static int vp8_alloc_frame(VP8Context *s, AVFrame *f)
return 0;
}
static void vp8_release_frame(VP8Context *s, AVFrame *f, int is_close)
static void vp8_release_frame(VP8Context *s, AVFrame *f, int prefer_delayed_free, int can_direct_free)
{
if (!is_close) {
if (f->ref_index[0]) {
assert(s->num_maps_to_be_freed < FF_ARRAY_ELEMS(s->segmentation_maps));
s->segmentation_maps[s->num_maps_to_be_freed++] = f->ref_index[0];
if (f->ref_index[0]) {
if (prefer_delayed_free) {
/* Upon a size change, we want to free the maps but other threads may still
* be using them, so queue them. Upon a seek, all threads are inactive so
* we want to cache one to prevent re-allocation in the next decoding
* iteration, but the rest we can free directly. */
int max_queued_maps = can_direct_free ? 1 : FF_ARRAY_ELEMS(s->segmentation_maps);
if (s->num_maps_to_be_freed < max_queued_maps) {
s->segmentation_maps[s->num_maps_to_be_freed++] = f->ref_index[0];
} else if (can_direct_free) /* vp8_decode_flush(), but our queue is full */ {
av_free(f->ref_index[0]);
} /* else: MEMLEAK (should never happen, but better that than crash) */
f->ref_index[0] = NULL;
} else /* vp8_decode_free() */ {
av_free(f->ref_index[0]);
}
} else {
av_freep(&f->ref_index[0]);
}
ff_thread_release_buffer(s->avctx, f);
}
static void vp8_decode_flush_impl(AVCodecContext *avctx, int force, int is_close)
static void vp8_decode_flush_impl(AVCodecContext *avctx,
int prefer_delayed_free, int can_direct_free, int free_mem)
{
VP8Context *s = avctx->priv_data;
int i;
if (!avctx->is_copy || force) {
if (!avctx->is_copy) {
for (i = 0; i < 5; i++)
if (s->frames[i].data[0])
vp8_release_frame(s, &s->frames[i], is_close);
vp8_release_frame(s, &s->frames[i], prefer_delayed_free, can_direct_free);
}
memset(s->framep, 0, sizeof(s->framep));
free_buffers(s);
s->maps_are_invalid = 1;
if (free_mem) {
free_buffers(s);
s->maps_are_invalid = 1;
}
}
static void vp8_decode_flush(AVCodecContext *avctx)
{
vp8_decode_flush_impl(avctx, 0, 0);
vp8_decode_flush_impl(avctx, 1, 1, 0);
}
static int update_dimensions(VP8Context *s, int width, int height)
@ -101,7 +113,7 @@ static int update_dimensions(VP8Context *s, int width, int height)
if (av_image_check_size(width, height, 0, s->avctx))
return AVERROR_INVALIDDATA;
vp8_decode_flush_impl(s->avctx, 1, 0);
vp8_decode_flush_impl(s->avctx, 1, 0, 1);
avcodec_set_dimensions(s->avctx, width, height);
}
@ -1581,7 +1593,7 @@ static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
&s->frames[i] != s->framep[VP56_FRAME_PREVIOUS] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN2])
vp8_release_frame(s, &s->frames[i], 0);
vp8_release_frame(s, &s->frames[i], 1, 0);
// find a free buffer
for (i = 0; i < 5; i++)
@ -1597,7 +1609,7 @@ static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
abort();
}
if (curframe->data[0])
ff_thread_release_buffer(avctx, curframe);
vp8_release_frame(s, curframe, 1, 0);
curframe->key_frame = s->keyframe;
curframe->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
@ -1778,7 +1790,7 @@ static av_cold int vp8_decode_init(AVCodecContext *avctx)
static av_cold int vp8_decode_free(AVCodecContext *avctx)
{
vp8_decode_flush_impl(avctx, 0, 1);
vp8_decode_flush_impl(avctx, 0, 1, 1);
release_queued_segmaps(avctx->priv_data, 1);
return 0;
}

1
libavformat/avformat.h
View File

@ -676,6 +676,7 @@ typedef struct AVStream {
int duration_count;
double duration_error[2][2][MAX_STD_TIMEBASES];
int64_t codec_info_duration;
int nb_decoded_frames;
} *info;
/**

6
libavformat/dsicin.c
View File

@ -131,9 +131,8 @@ static int cin_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->codec->codec_tag = 0; /* no tag */
st->codec->channels = 1;
st->codec->sample_rate = 22050;
st->codec->bits_per_coded_sample = 16;
st->codec->bits_per_coded_sample = 8;
st->codec->bit_rate = st->codec->sample_rate * st->codec->bits_per_coded_sample * st->codec->channels;
st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
return 0;
}
@ -211,7 +210,8 @@ static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
pkt->stream_index = cin->audio_stream_index;
pkt->pts = cin->audio_stream_pts;
cin->audio_stream_pts += cin->audio_buffer_size * 2 / cin->file_header.audio_frame_size;
pkt->duration = cin->audio_buffer_size - (pkt->pts == 0);
cin->audio_stream_pts += pkt->duration;
cin->audio_buffer_size = 0;
return 0;
}

4
libavformat/utils.c
View File

@ -2200,7 +2200,7 @@ static int has_codec_parameters(AVCodecContext *avctx)
static int has_decode_delay_been_guessed(AVStream *st)
{
return st->codec->codec_id != CODEC_ID_H264 ||
st->codec_info_nb_frames >= 6 + st->codec->has_b_frames;
st->info->nb_decoded_frames >= 6;
}
static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **options)
@ -2226,6 +2226,8 @@ static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **option
avcodec_get_frame_defaults(&picture);
ret = avcodec_decode_video2(st->codec, &picture,
&got_picture, avpkt);
if (got_picture)
st->info->nb_decoded_frames++;
break;
case AVMEDIA_TYPE_AUDIO:
data_size = FFMAX(avpkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE);