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Code Issues Releases Activity

Merge remote-tracking branch 'qatar/master'

Browse Source 
* qatar/master:
  dv1394: Swap the min and max values of the 'standard' option
  rtpdec_vp8: Don't parse fields that aren't used
  lavc: add some AVPacket doxy.
  audiointerleave: deobfuscate a function call.
  rtpdec: factorize identical code used in several handlers
  a64: remove interleaved mode.
  doc: Point to the new location of the c99-to-c89 tool
  decode_audio3: initialize AVFrame
  ws-snd1: set channel layout
  wmavoice: set channel layout
  wmapro: use AVCodecContext.channels instead of keeping a private copy
  wma: do not keep private copies of some AVCodecContext fields

Conflicts:
	libavcodec/wmadec.c
	libavcodec/wmaenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-02 14:40:04 +01:00
commit 8551c6bec0
18 changed files with 150 additions and 268 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
libavcodec/avcodec.h
View File

@ -962,6 +962,28 @@ enum AVPacketSideDataType {
AV_PKT_DATA_SUBTITLE_POSITION,
};
/**
* This structure stores compressed data. It is typically exported by demuxers
* and then passed as input to decoders, or received as output from encoders and
* then passed to muxers.
*
* For video, it should typically contain one compressed frame. For audio it may
* contain several compressed frames.
*
* AVPacket is one of the few structs in FFmpeg, whose size is a part of public
* ABI. Thus it may be allocated on stack and no new fields can be added to it
* without libavcodec and libavformat major bump.
*
* The semantics of data ownership depends on the destruct field.
* If it is set, the packet data is dynamically allocated and is valid
* indefinitely until av_free_packet() is called (which in turn calls the
* destruct callback to free the data). If destruct is not set, the packet data
* is typically backed by some static buffer somewhere and is only valid for a
* limited time (e.g. until the next read call when demuxing).
*
* The side data is always allocated with av_malloc() and is freed in
* av_free_packet().
*/
typedef struct AVPacket {
/**
* Presentation timestamp in AVStream->time_base units; the time at which

2
libavcodec/utils.c
View File

@ -1702,7 +1702,7 @@ int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *sa
int *frame_size_ptr,
AVPacket *avpkt)
{
AVFrame frame;
AVFrame frame = {0};
int ret, got_frame = 0;
if (avctx->get_buffer != avcodec_default_get_buffer) {

36
libavcodec/wma.c
View File

@ -82,11 +82,6 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
|| avctx->bit_rate <= 0)
return -1;
s->sample_rate = avctx->sample_rate;
s->nb_channels = avctx->channels;
s->bit_rate = avctx->bit_rate;
s->block_align = avctx->block_align;
ff_dsputil_init(&s->dsp, avctx);
ff_fmt_convert_init(&s->fmt_conv, avctx);
avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
@ -98,7 +93,8 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
}
/* compute MDCT block size */
s->frame_len_bits = ff_wma_get_frame_len_bits(s->sample_rate, s->version, 0);
s->frame_len_bits = ff_wma_get_frame_len_bits(avctx->sample_rate,
s->version, 0);
s->next_block_len_bits = s->frame_len_bits;
s->prev_block_len_bits = s->frame_len_bits;
s->block_len_bits = s->frame_len_bits;
@ -107,7 +103,7 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
if (s->use_variable_block_len) {
int nb_max, nb;
nb = ((flags2 >> 3) & 3) + 1;
if ((s->bit_rate / s->nb_channels) >= 32000)
if ((avctx->bit_rate / avctx->channels) >= 32000)
nb += 2;
nb_max = s->frame_len_bits - BLOCK_MIN_BITS;
if (nb > nb_max)
@ -119,10 +115,10 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
/* init rate dependent parameters */
s->use_noise_coding = 1;
high_freq = s->sample_rate * 0.5;
high_freq = avctx->sample_rate * 0.5;
/* if version 2, then the rates are normalized */
sample_rate1 = s->sample_rate;
sample_rate1 = avctx->sample_rate;
if (s->version == 2) {
if (sample_rate1 >= 44100) {
sample_rate1 = 44100;
@ -137,13 +133,13 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
}
}
bps = (float)s->bit_rate / (float)(s->nb_channels * s->sample_rate);
bps = (float)avctx->bit_rate / (float)(avctx->channels * avctx->sample_rate);
s->byte_offset_bits = av_log2((int)(bps * s->frame_len / 8.0 + 0.5)) + 2;
/* compute high frequency value and choose if noise coding should
be activated */
bps1 = bps;
if (s->nb_channels == 2)
if (avctx->channels == 2)
bps1 = bps * 1.6;
if (sample_rate1 == 44100) {
if (bps1 >= 0.61) {
@ -186,8 +182,8 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
}
av_dlog(s->avctx, "flags2=0x%x\n", flags2);
av_dlog(s->avctx, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",
s->version, s->nb_channels, s->sample_rate, s->bit_rate,
s->block_align);
s->version, avctx->channels, avctx->sample_rate, avctx->bit_rate,
avctx->block_align);
av_dlog(s->avctx, "bps=%f bps1=%f high_freq=%f bitoffset=%d\n",
bps, bps1, high_freq, s->byte_offset_bits);
av_dlog(s->avctx, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",
@ -210,7 +206,7 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
lpos = 0;
for (i = 0; i < 25; i++) {
a = ff_wma_critical_freqs[i];
b = s->sample_rate;
b = avctx->sample_rate;
pos = ((block_len * 2 * a) + (b >> 1)) / b;
if (pos > block_len)
pos = block_len;
@ -227,11 +223,11 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
table = NULL;
a = s->frame_len_bits - BLOCK_MIN_BITS - k;
if (a < 3) {
if (s->sample_rate >= 44100) {
if (avctx->sample_rate >= 44100) {
table = exponent_band_44100[a];
} else if (s->sample_rate >= 32000) {
} else if (avctx->sample_rate >= 32000) {
table = exponent_band_32000[a];
} else if (s->sample_rate >= 22050) {
} else if (avctx->sample_rate >= 22050) {
table = exponent_band_22050[a];
}
}
@ -245,7 +241,7 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
lpos = 0;
for (i = 0; i < 25; i++) {
a = ff_wma_critical_freqs[i];
b = s->sample_rate;
b = avctx->sample_rate;
pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);
pos <<= 2;
if (pos > block_len)
@ -264,7 +260,7 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;
/* high freq computation */
s->high_band_start[k] = (int)((block_len * 2 * high_freq) /
s->sample_rate + 0.5);
avctx->sample_rate + 0.5);
n = s->exponent_sizes[k];
j = 0;
pos = 0;
@ -344,7 +340,7 @@ int ff_wma_init(AVCodecContext *avctx, int flags2)
/* choose the VLC tables for the coefficients */
coef_vlc_table = 2;
if (s->sample_rate >= 32000) {
if (avctx->sample_rate >= 32000) {
if (bps1 < 0.72) {
coef_vlc_table = 0;
} else if (bps1 < 1.16) {

4
libavcodec/wma.h
View File

@ -69,11 +69,7 @@ typedef struct WMACodecContext {
AVFrame frame;
GetBitContext gb;
PutBitContext pb;
int sample_rate;
int nb_channels;
int bit_rate;
int version; ///< 1 = 0x160 (WMAV1), 2 = 0x161 (WMAV2)
int block_align;
int use_bit_reservoir;
int use_variable_block_len;
int use_exp_vlc; ///< exponent coding: 0 = lsp, 1 = vlc + delta

34
libavcodec/wmadec.c
View File

@ -487,11 +487,11 @@ static int wma_decode_block(WMACodecContext *s)
return -1;
}
if (s->nb_channels == 2) {
if (s->avctx->channels == 2) {
s->ms_stereo = get_bits1(&s->gb);
}
v = 0;
for(ch = 0; ch < s->nb_channels; ch++) {
for(ch = 0; ch < s->avctx->channels; ch++) {
a = get_bits1(&s->gb);
s->channel_coded[ch] = a;
v |= a;
@ -518,13 +518,13 @@ static int wma_decode_block(WMACodecContext *s)
/* compute number of coefficients */
n = s->coefs_end[bsize] - s->coefs_start;
for(ch = 0; ch < s->nb_channels; ch++)
for(ch = 0; ch < s->avctx->channels; ch++)
nb_coefs[ch] = n;
/* complex coding */
if (s->use_noise_coding) {
for(ch = 0; ch < s->nb_channels; ch++) {
for(ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int i, n, a;
n = s->exponent_high_sizes[bsize];
@ -537,7 +537,7 @@ static int wma_decode_block(WMACodecContext *s)
}
}
}
for(ch = 0; ch < s->nb_channels; ch++) {
for(ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int i, n, val, code;
@ -565,7 +565,7 @@ static int wma_decode_block(WMACodecContext *s)
/* exponents can be reused in short blocks. */
if ((s->block_len_bits == s->frame_len_bits) ||
get_bits1(&s->gb)) {
for(ch = 0; ch < s->nb_channels; ch++) {
for(ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
if (s->use_exp_vlc) {
if (decode_exp_vlc(s, ch) < 0)
@ -579,7 +579,7 @@ static int wma_decode_block(WMACodecContext *s)
}
/* parse spectral coefficients : just RLE encoding */
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int tindex;
WMACoef* ptr = &s->coefs1[ch][0];
@ -593,7 +593,7 @@ static int wma_decode_block(WMACodecContext *s)
0, ptr, 0, nb_coefs[ch],
s->block_len, s->frame_len_bits, coef_nb_bits);
}
if (s->version == 1 && s->nb_channels >= 2) {
if (s->version == 1 && s->avctx->channels >= 2) {
align_get_bits(&s->gb);
}
}
@ -608,7 +608,7 @@ static int wma_decode_block(WMACodecContext *s)
}
/* finally compute the MDCT coefficients */
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
WMACoef *coefs1;
float *coefs, *exponents, mult, mult1, noise;
@ -712,7 +712,7 @@ static int wma_decode_block(WMACodecContext *s)
}
#ifdef TRACE
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
dump_floats(s, "exponents", 3, s->exponents[ch], s->block_len);
dump_floats(s, "coefs", 1, s->coefs[ch], s->block_len);
@ -736,7 +736,7 @@ static int wma_decode_block(WMACodecContext *s)
next:
mdct = &s->mdct_ctx[bsize];
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
int n4, index;
n4 = s->block_len / 2;
@ -780,7 +780,7 @@ static int wma_decode_frame(WMACodecContext *s, float **samples,
break;
}
for (ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
/* copy current block to output */
memcpy(samples[ch] + samples_offset, s->frame_out[ch],
s->frame_len * sizeof(*s->frame_out[ch]));
@ -813,14 +813,14 @@ static int wma_decode_superframe(AVCodecContext *avctx, void *data,
s->last_superframe_len = 0;
return 0;
}
if (buf_size < s->block_align) {
if (buf_size < avctx->block_align) {
av_log(avctx, AV_LOG_ERROR,
"Input packet size too small (%d < %d)\n",
buf_size, s->block_align);
buf_size, avctx->block_align);
return AVERROR_INVALIDDATA;
}
if(s->block_align)
buf_size = s->block_align;
if(avctx->block_align)
buf_size = avctx->block_align;
init_get_bits(&s->gb, buf, buf_size*8);
@ -915,7 +915,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, void *data,
av_dlog(s->avctx, "%d %d %d %d outbytes:%td 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);
(int8_t *)samples - (int8_t *)data, avctx->block_align);
*got_frame_ptr = 1;
*(AVFrame *)data = s->frame;

35
libavcodec/wmaenc.c
View File

@ -27,7 +27,7 @@
static int encode_init(AVCodecContext * avctx){
WMACodecContext *s = avctx->priv_data;
int i, flags1, flags2;
int i, flags1, flags2, block_align;
uint8_t *extradata;
s->avctx = avctx;
@ -78,10 +78,11 @@ static int encode_init(AVCodecContext * avctx){
for(i = 0; i < s->nb_block_sizes; i++)
ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 0, 1.0);
s->block_align = avctx->bit_rate * (int64_t)s->frame_len /
block_align = avctx->bit_rate * (int64_t)s->frame_len /
(avctx->sample_rate * 8);
s->block_align = FFMIN(s->block_align, MAX_CODED_SUPERFRAME_SIZE);
avctx->block_align = s->block_align;
block_align = FFMIN(block_align, MAX_CODED_SUPERFRAME_SIZE);
avctx->block_align = block_align;
avctx->frame_size = avctx->delay = s->frame_len;
#if FF_API_OLD_ENCODE_AUDIO
@ -184,7 +185,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
//FIXME factor
v = s->coefs_end[bsize] - s->coefs_start;
for(ch = 0; ch < s->nb_channels; ch++)
for (ch = 0; ch < s->avctx->channels; ch++)
nb_coefs[ch] = v;
{
int n4 = s->block_len / 2;
@ -194,18 +195,18 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
}
}
if (s->nb_channels == 2) {
if (s->avctx->channels == 2) {
put_bits(&s->pb, 1, !!s->ms_stereo);
}
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
s->channel_coded[ch] = 1; //FIXME only set channel_coded when needed, instead of always
if (s->channel_coded[ch]) {
init_exp(s, ch, fixed_exp);
}
}
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
WMACoef *coefs1;
float *coefs, *exponents, mult;
@ -233,7 +234,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
}
v = 0;
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
int a = s->channel_coded[ch];
put_bits(&s->pb, 1, a);
v |= a;
@ -249,7 +250,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
coef_nb_bits= ff_wma_total_gain_to_bits(total_gain);
if (s->use_noise_coding) {
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int i, n;
n = s->exponent_high_sizes[bsize];
@ -268,7 +269,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
}
if (parse_exponents) {
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
if (s->use_exp_vlc) {
encode_exp_vlc(s, ch, fixed_exp);
@ -282,7 +283,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
av_assert0(0); //FIXME not implemented
}
for(ch = 0; ch < s->nb_channels; ch++) {
for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int run, tindex;
WMACoef *ptr, *eptr;
@ -320,7 +321,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
if(run)
put_bits(&s->pb, s->coef_vlcs[tindex]->huffbits[1], s->coef_vlcs[tindex]->huffcodes[1]);
}
if (s->version == 1 && s->nb_channels >= 2) {
if (s->version == 1 && s->avctx->channels >= 2) {
avpriv_align_put_bits(&s->pb);
}
}
@ -339,7 +340,7 @@ static int encode_frame(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
avpriv_align_put_bits(&s->pb);
return put_bits_count(&s->pb)/8 - s->block_align;
return put_bits_count(&s->pb) / 8 - s->avctx->block_align;
}
static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
@ -379,18 +380,18 @@ static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
while(total_gain <= 128 && error > 0)
error = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain++);
av_assert0((put_bits_count(&s->pb) & 7) == 0);
i= s->block_align - (put_bits_count(&s->pb)+7)/8;
i= avctx->block_align - (put_bits_count(&s->pb)+7)/8;
av_assert0(i>=0);
while(i--)
put_bits(&s->pb, 8, 'N');
flush_put_bits(&s->pb);
av_assert0(put_bits_ptr(&s->pb) - s->pb.buf == s->block_align);
av_assert0(put_bits_ptr(&s->pb) - s->pb.buf == avctx->block_align);
if (frame->pts != AV_NOPTS_VALUE)
avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->delay);
avpkt->size = s->block_align;
avpkt->size = avctx->block_align;
*got_packet_ptr = 1;
return 0;
}

52
libavcodec/wmaprodec.c
View File

@ -184,7 +184,6 @@ typedef struct WMAProDecodeCtx {
uint8_t bits_per_sample; ///< integer audio sample size for the unscaled IMDCT output (used to scale to [-1.0, 1.0])
uint16_t samples_per_frame; ///< number of samples to output
uint16_t log2_frame_size;
int8_t num_channels; ///< number of channels in the stream (same as AVCodecContext.num_channels)
int8_t lfe_channel; ///< lfe channel index
uint8_t max_num_subframes;
uint8_t subframe_len_bits; ///< number of bits used for the subframe length
@ -246,7 +245,7 @@ static av_cold void dump_context(WMAProDecodeCtx *s)
PRINT("log2 frame size", s->log2_frame_size);
PRINT("max num subframes", s->max_num_subframes);
PRINT("len prefix", s->len_prefix);
PRINT("num channels", s->num_channels);
PRINT("num channels", s->avctx->channels);
}
/**
@ -343,18 +342,17 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
s->num_channels = avctx->channels;
if (s->num_channels < 0) {
av_log(avctx, AV_LOG_ERROR, "invalid number of channels %d\n", s->num_channels);
if (avctx->channels < 0) {
av_log(avctx, AV_LOG_ERROR, "invalid number of channels %d\n",
avctx->channels);
return AVERROR_INVALIDDATA;
} else if (s->num_channels > WMAPRO_MAX_CHANNELS) {
} else if (avctx->channels > WMAPRO_MAX_CHANNELS) {
av_log_ask_for_sample(avctx, "unsupported number of channels\n");
return AVERROR_PATCHWELCOME;
}
/** init previous block len */
for (i = 0; i < s->num_channels; i++)
for (i = 0; i < avctx->channels; i++)
s->channel[i].prev_block_len = s->samples_per_frame;
/** extract lfe channel position */
@ -531,7 +529,7 @@ static int decode_tilehdr(WMAProDecodeCtx *s)
{
uint16_t num_samples[WMAPRO_MAX_CHANNELS] = { 0 };/**< sum of samples for all currently known subframes of a channel */
uint8_t contains_subframe[WMAPRO_MAX_CHANNELS]; /**< flag indicating if a channel contains the current subframe */
int channels_for_cur_subframe = s->num_channels; /**< number of channels that contain the current subframe */
int channels_for_cur_subframe = s->avctx->channels; /**< number of channels that contain the current subframe */
int fixed_channel_layout = 0; /**< flag indicating that all channels use the same subframe offsets and sizes */
int min_channel_len = 0; /**< smallest sum of samples (channels with this length will be processed first) */
int c;
@ -543,7 +541,7 @@ static int decode_tilehdr(WMAProDecodeCtx *s)
*/
/** reset tiling information */
for (c = 0; c < s->num_channels; c++)
for (c = 0; c < s->avctx->channels; c++)
s->channel[c].num_subframes = 0;
if (s->max_num_subframes == 1 || get_bits1(&s->gb))
@ -554,7 +552,7 @@ static int decode_tilehdr(WMAProDecodeCtx *s)
int subframe_len;
/** check which channels contain the subframe */
for (c = 0; c < s->num_channels; c++) {
for (c = 0; c < s->avctx->channels; c++) {
if (num_samples[c] == min_channel_len) {
if (fixed_channel_layout || channels_for_cur_subframe == 1 ||
(min_channel_len == s->samples_per_frame - s->min_samples_per_subframe))
@ -571,7 +569,7 @@ static int decode_tilehdr(WMAProDecodeCtx *s)
/** add subframes to the individual channels and find new min_channel_len */
min_channel_len += subframe_len;
for (c = 0; c < s->num_channels; c++) {
for (c = 0; c < s->avctx->channels; c++) {
WMAProChannelCtx* chan = &s->channel[c];
if (contains_subframe[c]) {
@ -598,7 +596,7 @@ static int decode_tilehdr(WMAProDecodeCtx *s)
}
} while (min_channel_len < s->samples_per_frame);
for (c = 0; c < s->num_channels; c++) {
for (c = 0; c < s->avctx->channels; c++) {
int i;
int offset = 0;
for (i = 0; i < s->channel[c].num_subframes; i++) {
@ -624,8 +622,8 @@ static void decode_decorrelation_matrix(WMAProDecodeCtx *s,
int i;
int offset = 0;
int8_t rotation_offset[WMAPRO_MAX_CHANNELS * WMAPRO_MAX_CHANNELS];
memset(chgroup->decorrelation_matrix, 0, s->num_channels *
s->num_channels * sizeof(*chgroup->decorrelation_matrix));
memset(chgroup->decorrelation_matrix, 0, s->avctx->channels *
s->avctx->channels * sizeof(*chgroup->decorrelation_matrix));
for (i = 0; i < chgroup->num_channels * (chgroup->num_channels - 1) >> 1; i++)
rotation_offset[i] = get_bits(&s->gb, 6);
@ -678,7 +676,7 @@ static int decode_channel_transform(WMAProDecodeCtx* s)
/** in the one channel case channel transforms are pointless */
s->num_chgroups = 0;
if (s->num_channels > 1) {
if (s->avctx->channels > 1) {
int remaining_channels = s->channels_for_cur_subframe;
if (get_bits1(&s->gb)) {
@ -724,7 +722,7 @@ static int decode_channel_transform(WMAProDecodeCtx* s)
}
} else {
chgroup->transform = 1;
if (s->num_channels == 2) {
if (s->avctx->channels == 2) {
chgroup->decorrelation_matrix[0] = 1.0;
chgroup->decorrelation_matrix[1] = -1.0;
chgroup->decorrelation_matrix[2] = 1.0;
@ -1014,7 +1012,7 @@ static void inverse_channel_transform(WMAProDecodeCtx *s)
(*ch)[y] = sum;
}
}
} else if (s->num_channels == 2) {
} else if (s->avctx->channels == 2) {
int len = FFMIN(sfb[1], s->subframe_len) - sfb[0];
s->dsp.vector_fmul_scalar(ch_data[0] + sfb[0],
ch_data[0] + sfb[0],
@ -1067,7 +1065,7 @@ static int decode_subframe(WMAProDecodeCtx *s)
int offset = s->samples_per_frame;
int subframe_len = s->samples_per_frame;
int i;
int total_samples = s->samples_per_frame * s->num_channels;
int total_samples = s->samples_per_frame * s->avctx->channels;
int transmit_coeffs = 0;
int cur_subwoofer_cutoff;
@ -1077,7 +1075,7 @@ static int decode_subframe(WMAProDecodeCtx *s)
== the next block of the channel with the smallest number of
decoded samples
*/
for (i = 0; i < s->num_channels; i++) {
for (i = 0; i < s->avctx->channels; i++) {
s->channel[i].grouped = 0;
if (offset > s->channel[i].decoded_samples) {
offset = s->channel[i].decoded_samples;
@ -1091,7 +1089,7 @@ static int decode_subframe(WMAProDecodeCtx *s)
/** get a list of all channels that contain the estimated block */
s->channels_for_cur_subframe = 0;
for (i = 0; i < s->num_channels; i++) {
for (i = 0; i < s->avctx->channels; i++) {
const int cur_subframe = s->channel[i].cur_subframe;
/** substract already processed samples */
total_samples -= s->channel[i].decoded_samples;
@ -1321,9 +1319,9 @@ static int decode_frame(WMAProDecodeCtx *s, int *got_frame_ptr)
}
/** read postproc transform */
if (s->num_channels > 1 && get_bits1(gb)) {
if (s->avctx->channels > 1 && get_bits1(gb)) {
if (get_bits1(gb)) {
for (i = 0; i < s->num_channels * s->num_channels; i++)
for (i = 0; i < avctx->channels * avctx->channels; i++)
skip_bits(gb, 4);
}
}
@ -1358,7 +1356,7 @@ static int decode_frame(WMAProDecodeCtx *s, int *got_frame_ptr)
/** reset subframe states */
s->parsed_all_subframes = 0;
for (i = 0; i < s->num_channels; i++) {
for (i = 0; i < avctx->channels; i++) {
s->channel[i].decoded_samples = 0;
s->channel[i].cur_subframe = 0;
s->channel[i].reuse_sf = 0;
@ -1381,11 +1379,11 @@ static int decode_frame(WMAProDecodeCtx *s, int *got_frame_ptr)
}
/** copy samples to the output buffer */
for (i = 0; i < s->num_channels; i++)
for (i = 0; i < avctx->channels; i++)
memcpy(s->frame.extended_data[i], s->channel[i].out,
s->samples_per_frame * sizeof(*s->channel[i].out));
for (i = 0; i < s->num_channels; i++) {
for (i = 0; i < avctx->channels; i++) {
/** reuse second half of the IMDCT output for the next frame */
memcpy(&s->channel[i].out[0],
&s->channel[i].out[s->samples_per_frame],
@ -1615,7 +1613,7 @@ static void flush(AVCodecContext *avctx)
int i;
/** reset output buffer as a part of it is used during the windowing of a
new frame */
for (i = 0; i < s->num_channels; i++)
for (i = 0; i < avctx->channels; i++)
memset(s->channel[i].out, 0, s->samples_per_frame *
sizeof(*s->channel[i].out));
s->packet_loss = 1;

3
libavcodec/wmavoice.c
View File

@ -29,6 +29,7 @@
#include <math.h>
#include "libavutil/audioconvert.h"
#include "libavutil/mem.h"
#include "dsputil.h"
#include "avcodec.h"
@ -439,6 +440,8 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
2 * (s->block_conv_table[1] - 2 * s->min_pitch_val);
s->block_pitch_nbits = av_ceil_log2(s->block_pitch_range);
ctx->channels = 1;
ctx->channel_layout = AV_CH_LAYOUT_MONO;
ctx->sample_fmt = AV_SAMPLE_FMT_FLT;
avcodec_get_frame_defaults(&s->frame);

11
libavcodec/ws-snd1.c
View File

@ -20,6 +20,8 @@
*/
#include <stdint.h>
#include "libavutil/audioconvert.h"
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
@ -46,12 +48,9 @@ static av_cold int ws_snd_decode_init(AVCodecContext *avctx)
{
WSSndContext *s = avctx->priv_data;
if (avctx->channels != 1) {
av_log_ask_for_sample(avctx, "unsupported number of channels\n");
return AVERROR(EINVAL);
}
avctx->sample_fmt = AV_SAMPLE_FMT_U8;
avctx->channels = 1;
avctx->channel_layout = AV_CH_LAYOUT_MONO;
avctx->sample_fmt = AV_SAMPLE_FMT_U8;
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;

116
libavformat/a64.c
View File

@ -23,17 +23,11 @@
#include "libavcodec/a64enc.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
typedef struct A64MuxerContext {
int interleaved;
AVPacket prev_pkt;
int prev_frame_count;
} A64MuxerContext;
#include "rawenc.h"
static int a64_write_header(struct AVFormatContext *s)
{
AVCodecContext *avctx = s->streams[0]->codec;
A64MuxerContext *c = s->priv_data;
uint8_t header[5] = {
0x00, //load
0x40, //address
@ -41,7 +35,6 @@ static int a64_write_header(struct AVFormatContext *s)
0x00, //charset_lifetime (multi only)
0x00 //fps in 50/fps;
};
c->interleaved = 0;
switch (avctx->codec->id) {
case AV_CODEC_ID_A64_MULTI:
header[2] = 0x00;
@ -57,109 +50,6 @@ static int a64_write_header(struct AVFormatContext *s)
return AVERROR(EINVAL);
}
avio_write(s->pb, header, 2);
c->prev_pkt.size = 0;
c->prev_frame_count = 0;
return 0;
}
static int a64_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
AVCodecContext *avctx = s->streams[0]->codec;
A64MuxerContext *c = s->priv_data;
int i, j;
int ch_chunksize;
int lifetime;
int frame_count;
int charset_size;
int frame_size;
int num_frames;
/* fetch values from extradata */
switch (avctx->codec->id) {
case AV_CODEC_ID_A64_MULTI:
case AV_CODEC_ID_A64_MULTI5:
if(c->interleaved) {
/* Write interleaved, means we insert chunks of the future charset before each current frame.
* Reason: if we load 1 charset + corresponding frames in one block on c64, we need to store
* them first and then display frame by frame to keep in sync. Thus we would read and write
* the data for colram from/to ram first and waste too much time. If we interleave and send the
* charset beforehand, we assemble a new charset chunk by chunk, write current screen data to
* screen-ram to be displayed and decode the colram directly to colram-location $d800 during
* the overscan, while reading directly from source.
* This is the only way so far, to achieve 25fps on c64 */
if(avctx->extradata) {
/* fetch values from extradata */
lifetime = AV_RB32(avctx->extradata + 0);
frame_count = AV_RB32(avctx->extradata + 4);
charset_size = AV_RB32(avctx->extradata + 8);
frame_size = AV_RB32(avctx->extradata + 12);
/* TODO: sanity checks? */
} else {
av_log(avctx, AV_LOG_ERROR, "extradata not set\n");
return AVERROR(EINVAL);
}
ch_chunksize=charset_size/lifetime;
/* TODO: check if charset/size is % lifetime, but maybe check in codec */
if(pkt->data) num_frames = lifetime;
else num_frames = c->prev_frame_count;
for(i = 0; i < num_frames; i++) {
if(pkt->data) {
/* if available, put newest charset chunk into buffer */
avio_write(s->pb, pkt->data + ch_chunksize * i, ch_chunksize);
} else {
/* a bit ugly, but is there an alternative to put many zeros? */
for(j = 0; j < ch_chunksize; j++) avio_w8(s->pb, 0);
}
if(c->prev_pkt.data) {
/* put frame (screen + colram) from last packet into buffer */
avio_write(s->pb, c->prev_pkt.data + charset_size + frame_size * i, frame_size);
} else {
/* a bit ugly, but is there an alternative to put many zeros? */
for(j = 0; j < frame_size; j++) avio_w8(s->pb, 0);
}
}
/* backup current packet for next turn */
if(pkt->data) {
/* no backup packet yet? create one! */
if(!c->prev_pkt.data) av_new_packet(&c->prev_pkt, pkt->size);
/* we have a packet and data is big enough, reuse it */
if(c->prev_pkt.data && c->prev_pkt.size >= pkt->size) {
memcpy(c->prev_pkt.data, pkt->data, pkt->size);
c->prev_pkt.size = pkt->size;
} else {
av_log(avctx, AV_LOG_ERROR, "Too less memory for prev_pkt.\n");
return AVERROR(ENOMEM);
}
}
c->prev_frame_count = frame_count;
break;
}
default:
/* Write things as is. Nice for self-contained frames from non-multicolor modes or if played
* directly from ram and not from a streaming device (rrnet/mmc) */
if(pkt) avio_write(s->pb, pkt->data, pkt->size);
break;
}
avio_flush(s->pb);
return 0;
}
static int a64_write_trailer(struct AVFormatContext *s)
{
A64MuxerContext *c = s->priv_data;
AVPacket pkt = {0};
/* need to flush last packet? */
if(c->interleaved) a64_write_packet(s, &pkt);
/* discard backed up packet */
if(c->prev_pkt.data) av_destruct_packet(&c->prev_pkt);
return 0;
}
@ -167,9 +57,7 @@ AVOutputFormat ff_a64_muxer = {
.name = "a64",
.long_name = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"),
.extensions = "a64, A64",
.priv_data_size = sizeof (A64Context),
.video_codec = AV_CODEC_ID_A64_MULTI,
.write_header = a64_write_header,
.write_packet = a64_write_packet,
.write_trailer = a64_write_trailer,
.write_packet = ff_raw_write_packet,
};

2
libavformat/audiointerleave.c
View File

@ -144,5 +144,5 @@ int ff_audio_rechunk_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt
}
}
return get_packet(s, out, pkt, flush);
return get_packet(s, out, NULL, flush);
}

11
libavformat/rtpdec.c
View File

@ -806,3 +806,14 @@ int ff_parse_fmtp(AVStream *stream, PayloadContext *data, const char *p,
av_free(value);
return 0;
}
int ff_rtp_finalize_packet(AVPacket *pkt, AVIOContext **dyn_buf, int stream_idx)
{
av_init_packet(pkt);
pkt->size = avio_close_dyn_buf(*dyn_buf, &pkt->data);
pkt->stream_index = stream_idx;
pkt->destruct = av_destruct_packet;
*dyn_buf = NULL;
return pkt->size;
}

5
libavformat/rtpdec.h
View File

@ -202,4 +202,9 @@ int ff_parse_fmtp(AVStream *stream, PayloadContext *data, const char *p,
void av_register_rtp_dynamic_payload_handlers(void);
/**
* Close the dynamic buffer and make a packet from it.
*/
int ff_rtp_finalize_packet(AVPacket *pkt, AVIOContext **dyn_buf, int stream_idx);
#endif /* AVFORMAT_RTPDEC_H */

12
libavformat/rtpdec_h263_rfc2190.c
View File

@ -61,7 +61,7 @@ static int h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
{
/* Corresponding to header fields in the RFC */
int f, p, i, sbit, ebit, src, r;
int header_size;
int header_size, ret;
if (data->newformat)
return ff_h263_handle_packet(ctx, data, st, pkt, timestamp, buf, len,
@ -133,7 +133,7 @@ static int h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
/* Check the picture start code, only start buffering a new frame
* if this is correct */
if (len > 4 && AV_RB32(buf) >> 10 == 0x20) {
int ret = avio_open_dyn_buf(&data->buf);
ret = avio_open_dyn_buf(&data->buf);
if (ret < 0)
return ret;
data->timestamp = *timestamp;
@ -185,13 +185,11 @@ static int h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
avio_w8(data->buf, data->endbyte);
data->endbyte_bits = 0;
av_init_packet(pkt);
pkt->size = avio_close_dyn_buf(data->buf, &pkt->data);
pkt->destruct = av_destruct_packet;
pkt->stream_index = st->index;
ret = ff_rtp_finalize_packet(pkt, &data->buf, st->index);
if (ret < 0)
return ret;
if (!i)
pkt->flags |= AV_PKT_FLAG_KEY;
data->buf = NULL;
return 0;
}

13
libavformat/rtpdec_jpeg.c
View File

@ -20,6 +20,7 @@
*/
#include "avformat.h"
#include "rtpdec.h"
#include "rtpdec_formats.h"
#include "libavutil/intreadwrite.h"
#include "libavcodec/mjpeg.h"
@ -367,19 +368,11 @@ static int jpeg_parse_packet(AVFormatContext *ctx, PayloadContext *jpeg,
avio_write(jpeg->frame, buf, sizeof(buf));
/* Prepare the JPEG packet. */
av_init_packet(pkt);
pkt->size = avio_close_dyn_buf(jpeg->frame, &pkt->data);
if (pkt->size < 0) {
if ((ret = ff_rtp_finalize_packet(pkt, &jpeg->frame, st->index)) < 0) {
av_log(ctx, AV_LOG_ERROR,
"Error occured when getting frame buffer.\n");
jpeg->frame = NULL;
return pkt->size;
return ret;
}
pkt->stream_index = st->index;
pkt->destruct = av_destruct_packet;
/* Re-init the frame buffer. */
jpeg->frame = NULL;
return 0;
}

9
libavformat/rtpdec_svq3.c
View File

@ -97,12 +97,11 @@ static int svq3_parse_packet (AVFormatContext *s, PayloadContext *sv,
avio_write(sv->pktbuf, buf, len);
if (end_packet) {
av_init_packet(pkt);
pkt->stream_index = st->index;
int ret = ff_rtp_finalize_packet(pkt, &sv->pktbuf, st->index);
if (ret < 0)
return ret;
*timestamp = sv->timestamp;
pkt->size = avio_close_dyn_buf(sv->pktbuf, &pkt->data);
pkt->destruct = av_destruct_packet;
sv->pktbuf = NULL;
return 0;
}

38
libavformat/rtpdec_vp8.c
View File

@ -36,15 +36,6 @@ struct PayloadContext {
uint32_t timestamp;
};
static void prepare_packet(AVPacket *pkt, PayloadContext *vp8, int stream)
{
av_init_packet(pkt);
pkt->stream_index = stream;
pkt->size = avio_close_dyn_buf(vp8->data, &pkt->data);
pkt->destruct = av_destruct_packet;
vp8->data = NULL;
}
static int vp8_handle_packet(AVFormatContext *ctx,
PayloadContext *vp8,
AVStream *st,
@ -54,16 +45,14 @@ static int vp8_handle_packet(AVFormatContext *ctx,
int len, int flags)
{
int start_partition, end_packet;
int extended_bits, non_ref, part_id;
int extended_bits, part_id;
int pictureid_present = 0, tl0picidx_present = 0, tid_present = 0,
keyidx_present = 0;
int pictureid = -1, keyidx = -1;
if (len < 1)
return AVERROR_INVALIDDATA;
extended_bits = buf[0] & 0x80;
non_ref = buf[0] & 0x20;
start_partition = buf[0] & 0x10;
part_id = buf[0] & 0x0f;
end_packet = flags & RTP_FLAG_MARKER;
@ -80,19 +69,12 @@ static int vp8_handle_packet(AVFormatContext *ctx,
len--;
}
if (pictureid_present) {
int size;
if (len < 1)
return AVERROR_INVALIDDATA;
if (buf[0] & 0x80) {
if (len < 2)
return AVERROR_INVALIDDATA;
pictureid = AV_RB16(buf) & 0x7fff;
buf += 2;
len -= 2;
} else {
pictureid = buf[0] & 0x7f;
buf++;
len--;
}
size = buf[0] & 0x80 ? 2 : 1;
buf += size;
len -= size;
}
if (tl0picidx_present) {
// Ignoring temporal level zero index
@ -100,11 +82,7 @@ static int vp8_handle_packet(AVFormatContext *ctx,
len--;
}
if (tid_present || keyidx_present) {
// Ignoring temporal layer index and layer sync bit
if (len < 1)
return AVERROR_INVALIDDATA;
if (keyidx_present)
keyidx = buf[0] & 0x1f;
// Ignoring temporal layer index, layer sync bit and keyframe index
buf++;
len--;
}
@ -133,7 +111,9 @@ static int vp8_handle_packet(AVFormatContext *ctx,
avio_write(vp8->data, buf, len);
if (end_packet) {
prepare_packet(pkt, vp8, st->index);
int ret = ff_rtp_finalize_packet(pkt, &vp8->data, st->index);
if (ret < 0)
return ret;
return 0;
}

13
libavformat/rtpdec_xiph.c
View File

@ -201,20 +201,13 @@ static int xiph_handle_packet(AVFormatContext * ctx,
if (fragmented == 3) {
// end of xiph data packet
av_init_packet(pkt);
pkt->size = avio_close_dyn_buf(data->fragment, &pkt->data);
if (pkt->size < 0) {
int ret = ff_rtp_finalize_packet(pkt, &data->fragment, st->index);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR,
"Error occurred when getting fragment buffer.");
return pkt->size;
return ret;
}
pkt->stream_index = st->index;
pkt->destruct = av_destruct_packet;
data->fragment = NULL;
return 0;
}
}