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Merge commit '1b3439b3055b083df51d7f7838ecc6b3f708b15c'

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* commit '1b3439b3055b083df51d7f7838ecc6b3f708b15c':
  mpegvideo: move frame size dependent memory management to separate functions
  configure: add --toolchain option
  configure: Make the smoothstreaming muxer enable the ismv muxer
  smoothstreaming: Export the mp4 codec tags
  mov: check for EOF in long lasting loops
  avcodec: cleanup utils.c
  binkaudio: remove unneeded GET_BITS_SAFE macro
  binkaudio: use float sample format
  binkaudio: use a different value for the coefficient scale for the DCT codec

Conflicts:
	configure
	libavcodec/mpegvideo.c
	libavcodec/utils.c
	libavformat/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
pull/28/head
Michael Niedermayer 13 years ago
parent b90210e9c5 1b3439b305
commit 67d501b4f1
7 changed files with 553 additions and 446 deletions
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  1. 14
      configure
  2. 77
      libavcodec/binkaudio.c
  3. 254
      libavcodec/mpegvideo.c
  4. 124
      libavcodec/utils.c
  5. 2
      libavformat/Makefile
  6. 72
      libavformat/mov.c
  7. 2
      libavformat/smoothstreamingenc.c

14
configure vendored
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@ -232,6 +232,7 @@ Advanced options (experts only):
--target-os=OS compiler targets OS [$target_os]
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--toolchain=NAME set tool defaults according to NAME
--nm=NM use nm tool NM [$nm_default]
--ar=AR use archive tool AR [$ar_default]
--as=AS use assembler AS [$as_default]
@ -1485,6 +1486,7 @@ CMDLINE_SET="
target_exec
target_os
target_path
toolchain
valgrind
yasmexe
"
@ -1813,6 +1815,7 @@ rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
sap_demuxer_select="sdp_demuxer"
sap_muxer_select="rtp_muxer rtp_protocol"
sdp_demuxer_select="rtpdec"
smoothstreaming_muxer_select="ismv_muxer"
spdif_muxer_select="aac_parser"
tg2_muxer_select="mov_muxer"
tgp_muxer_select="mov_muxer"
@ -2308,6 +2311,17 @@ strip_default="${cross_prefix}${strip_default}"
sysinclude_default="${sysroot}/usr/include"
case "$toolchain" in
msvc)
cc_default="c99wrap cl"
ld_default="c99wrap link"
nm_default="dumpbin -symbols"
;;
?*)
die "Unknown toolchain $toolchain"
;;
esac
set_default cc cxx pkg_config strip sysinclude yasmexe
enabled cross_compile || host_cc_default=$cc
set_default host_cc

77
libavcodec/binkaudio.c
Unescape View File

@ -47,8 +47,6 @@ static float quant_table[96];
typedef struct {
AVFrame frame;
GetBitContext gb;
DSPContext dsp;
FmtConvertContext fmt_conv;
int version_b; ///< Bink version 'b'
int first;
int channels;
@ -59,10 +57,7 @@ typedef struct {
unsigned int *bands;
float root;
DECLARE_ALIGNED(32, FFTSample, coeffs)[BINK_BLOCK_MAX_SIZE];
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
float previous[MAX_CHANNELS][BINK_BLOCK_MAX_SIZE / 16]; ///< coeffs from previous audio block
uint8_t *packet_buffer;
union {
RDFTContext rdft;
@ -79,9 +74,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
int i;
int frame_len_bits;
ff_dsputil_init(&s->dsp, avctx);
ff_fmt_convert_init(&s->fmt_conv, avctx);
/* determine frame length */
if (avctx->sample_rate < 22050) {
frame_len_bits = 9;
@ -100,19 +92,24 @@ static av_cold int decode_init(AVCodecContext *avctx)
if (avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT) {
// audio is already interleaved for the RDFT format variant
avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
sample_rate *= avctx->channels;
s->channels = 1;
if (!s->version_b)
frame_len_bits += av_log2(avctx->channels);
} else {
s->channels = avctx->channels;
avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
}
s->frame_len = 1 << frame_len_bits;
s->overlap_len = s->frame_len / 16;
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);
if (avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT)
s->root = 2.0 / (sqrt(s->frame_len) * 32768.0);
else
s->root = s->frame_len / (sqrt(s->frame_len) * 32768.0);
for (i = 0; i < 96; i++) {
/* constant is result of 0.066399999/log10(M_E) */
quant_table[i] = expf(i * 0.15289164787221953823f) * s->root;
@ -134,12 +131,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->bands[s->num_bands] = s->frame_len;
s->first = 1;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
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 == AV_CODEC_ID_BINKAUDIO_RDFT)
ff_rdft_init(&s->trans.rdft, frame_len_bits, DFT_C2R);
@ -167,18 +158,12 @@ 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 int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
static int decode_block(BinkAudioContext *s, float **out, int use_dct)
{
int ch, i, j, k;
float q, quant[25];
@ -189,7 +174,8 @@ static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
skip_bits(gb, 2);
for (ch = 0; ch < s->channels; ch++) {
FFTSample *coeffs = s->coeffs_ptr[ch];
FFTSample *coeffs = out[ch];
if (s->version_b) {
if (get_bits_left(gb) < 64)
return AVERROR_INVALIDDATA;
@ -218,10 +204,9 @@ static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
if (s->version_b) {
j = i + 16;
} else {
int v;
GET_BITS_SAFE(v, 1);
int v = get_bits1(gb);
if (v) {
GET_BITS_SAFE(v, 4);
v = get_bits(gb, 4);
j = i + rle_length_tab[v] * 8;
} else {
j = i + 8;
@ -230,7 +215,7 @@ static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
j = FFMIN(j, s->frame_len);
GET_BITS_SAFE(width, 4);
width = get_bits(gb, 4);
if (width == 0) {
memset(coeffs + i, 0, (j - i) * sizeof(*coeffs));
i = j;
@ -240,10 +225,10 @@ static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
while (i < j) {
if (s->bands[k] == i)
q = quant[k++];
GET_BITS_SAFE(coeff, width);
coeff = get_bits(gb, width);
if (coeff) {
int v;
GET_BITS_SAFE(v, 1);
v = get_bits1(gb);
if (v)
coeffs[i] = -q * coeff;
else
@ -259,30 +244,24 @@ static int decode_block(BinkAudioContext *s, int16_t *out, int use_dct)
if (CONFIG_BINKAUDIO_DCT_DECODER && use_dct) {
coeffs[0] /= 0.5;
s->trans.dct.dct_calc(&s->trans.dct, coeffs);
s->dsp.vector_fmul_scalar(coeffs, coeffs, s->frame_len / 2, s->frame_len);
}
else if (CONFIG_BINKAUDIO_RDFT_DECODER)
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->overlap_len,
s->channels);
if (!s->first) {
for (ch = 0; ch < s->channels; ch++) {
int j;
int count = s->overlap_len * s->channels;
int shift = av_log2(count);
for (i = 0; i < count; i++) {
out[i] = (s->previous[i] * (count - i) + out[i] * i) >> shift;
if (!s->first) {
j = ch;
for (i = 0; i < s->overlap_len; i++, j += s->channels)
out[ch][i] = (s->previous[ch][i] * (count - j) +
out[ch][i] * j) / count;
}
memcpy(s->previous[ch], &out[ch][s->frame_len - s->overlap_len],
s->overlap_len * sizeof(*s->previous[ch]));
}
memcpy(s->previous, s->current,
s->overlap_len * s->channels * sizeof(*s->previous));
s->first = 0;
return 0;
@ -311,7 +290,6 @@ static int decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
BinkAudioContext *s = avctx->priv_data;
int16_t *samples;
GetBitContext *gb = &s->gb;
int ret, consumed = 0;
@ -339,19 +317,20 @@ static int decode_frame(AVCodecContext *avctx, void *data,
}
/* get output buffer */
s->frame.nb_samples = s->block_size / avctx->channels;
s->frame.nb_samples = s->frame_len;
if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
samples = (int16_t *)s->frame.data[0];
if (decode_block(s, samples, avctx->codec->id == AV_CODEC_ID_BINKAUDIO_DCT)) {
if (decode_block(s, (float **)s->frame.extended_data,
avctx->codec->id == AV_CODEC_ID_BINKAUDIO_DCT)) {
av_log(avctx, AV_LOG_ERROR, "Incomplete packet\n");
return AVERROR_INVALIDDATA;
}
get_bits_align32(gb);
s->frame.nb_samples = s->block_size / avctx->channels;
*got_frame_ptr = 1;
*(AVFrame *)data = s->frame;

254
libavcodec/mpegvideo.c
Unescape View File

@ -657,49 +657,11 @@ void ff_MPV_decode_defaults(MpegEncContext *s)
}
/**
* init common structure for both encoder and decoder.
* this assumes that some variables like width/height are already set
* Initialize and allocates MpegEncContext fields dependent on the resolution.
*/
av_cold int ff_MPV_common_init(MpegEncContext *s)
static int init_context_frame(MpegEncContext *s)
{
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
int nb_slices = (HAVE_THREADS &&
s->avctx->active_thread_type & FF_THREAD_SLICE) ?
s->avctx->thread_count : 1;
if (s->encoding && s->avctx->slices)
nb_slices = s->avctx->slices;
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
s->mb_height = (s->height + 31) / 32 * 2;
else if (s->codec_id != AV_CODEC_ID_H264)
s->mb_height = (s->height + 15) / 16;
if (s->avctx->pix_fmt == PIX_FMT_NONE) {
av_log(s->avctx, AV_LOG_ERROR,
"decoding to PIX_FMT_NONE is not supported.\n");
return -1;
}
if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
int max_slices;
if (s->mb_height)
max_slices = FFMIN(MAX_THREADS, s->mb_height);
else
max_slices = MAX_THREADS;
av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
" reducing to %d\n", nb_slices, max_slices);
nb_slices = max_slices;
}
if ((s->width || s->height) &&
av_image_check_size(s->width, s->height, 0, s->avctx))
return -1;
ff_dct_common_init(s);
s->flags = s->avctx->flags;
s->flags2 = s->avctx->flags2;
s->mb_width = (s->width + 15) / 16;
s->mb_stride = s->mb_width + 1;
@ -708,11 +670,8 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
mb_array_size = s->mb_height * s->mb_stride;
mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
/* set chroma shifts */
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &s->chroma_x_shift,
&s->chroma_y_shift);
/* set default edge pos, will be overridden in decode_header if needed */
/* set default edge pos, will be overriden
* in decode_header if needed */
s->h_edge_pos = s->mb_width * 16;
s->v_edge_pos = s->mb_height * 16;
@ -729,12 +688,6 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
c_size = s->mb_stride * (s->mb_height + 1);
yc_size = y_size + 2 * c_size;
/* convert fourcc to upper case */
s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
s->avctx->coded_frame = &s->current_picture.f;
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
for (y = 0; y < s->mb_height; y++)
for (x = 0; x < s->mb_width; x++)
@ -757,40 +710,16 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
if(s->msmpeg4_version){
FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats, 2*2*(MAX_LEVEL+1)*(MAX_RUN+1)*2*sizeof(int), fail);
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail);
/* Allocate MB type table */
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16 , 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix16, 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16 , 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail)
if(s->avctx->noise_reduction){
FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail)
}
FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
mb_array_size * sizeof(float), fail);
FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
mb_array_size * sizeof(float), fail);
}
s->picture_count = MAX_PICTURE_COUNT * FFMAX(1, s->avctx->thread_count);
FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
s->picture_count * sizeof(Picture), fail);
for (i = 0; i < s->picture_count; i++) {
avcodec_get_frame_defaults(&s->picture[i].f);
}
FF_ALLOC_OR_GOTO(s->avctx, s->er_temp_buffer,
@ -804,8 +733,12 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
int j, k;
for (j = 0; j < 2; j++) {
for (k = 0; k < 2; k++) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_mv_table_base[i][j][k], mv_table_size * 2 * sizeof(int16_t), fail)
s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] + s->mb_stride + 1;
FF_ALLOCZ_OR_GOTO(s->avctx,
s->b_field_mv_table_base[i][j][k],
mv_table_size * 2 * sizeof(int16_t),
fail);
s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
s->mb_stride + 1;
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
@ -843,6 +776,98 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
// Note the + 1 is for a quicker mpeg4 slice_end detection
return 0;
fail:
return AVERROR(ENOMEM);
}
/**
* init common structure for both encoder and decoder.
* this assumes that some variables like width/height are already set
*/
av_cold int ff_MPV_common_init(MpegEncContext *s)
{
int i, err;
int nb_slices = (HAVE_THREADS &&
s->avctx->active_thread_type & FF_THREAD_SLICE) ?
s->avctx->thread_count : 1;
if (s->encoding && s->avctx->slices)
nb_slices = s->avctx->slices;
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
s->mb_height = (s->height + 31) / 32 * 2;
else if (s->codec_id != AV_CODEC_ID_H264)
s->mb_height = (s->height + 15) / 16;
if (s->avctx->pix_fmt == PIX_FMT_NONE) {
av_log(s->avctx, AV_LOG_ERROR,
"decoding to PIX_FMT_NONE is not supported.\n");
return -1;
}
if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
int max_slices;
if (s->mb_height)
max_slices = FFMIN(MAX_THREADS, s->mb_height);
else
max_slices = MAX_THREADS;
av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
" reducing to %d\n", nb_slices, max_slices);
nb_slices = max_slices;
}
if ((s->width || s->height) &&
av_image_check_size(s->width, s->height, 0, s->avctx))
return -1;
ff_dct_common_init(s);
s->flags = s->avctx->flags;
s->flags2 = s->avctx->flags2;
/* set chroma shifts */
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &s->chroma_x_shift,
&s->chroma_y_shift);
/* convert fourcc to upper case */
s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
s->avctx->coded_frame = &s->current_picture.f;
if (s->encoding) {
if (s->msmpeg4_version) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats,
2 * 2 * (MAX_LEVEL + 1) *
(MAX_RUN + 1) * 2 * sizeof(int), fail);
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix, 64 * 32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix, 64 * 32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix, 64 * 32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail)
if (s->avctx->noise_reduction) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail);
}
}
s->picture_count = MAX_PICTURE_COUNT * FFMAX(1, s->avctx->thread_count);
FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
s->picture_count * sizeof(Picture), fail);
for (i = 0; i < s->picture_count; i++) {
avcodec_get_frame_defaults(&s->picture[i].f);
}
if ((err = init_context_frame(s)))
goto fail;
s->parse_context.state = -1;
s->context_initialized = 1;
@ -878,24 +903,15 @@ av_cold int ff_MPV_common_init(MpegEncContext *s)
return -1;
}
/* init common structure for both encoder and decoder */
void ff_MPV_common_end(MpegEncContext *s)
/**
* Frees and resets MpegEncContext fields depending on the resolution.
* Is used during resolution changes to avoid a full reinitialization of the
* codec.
*/
static int free_context_frame(MpegEncContext *s)
{
int i, j, k;
if (s->slice_context_count > 1) {
for (i = 0; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
}
for (i = 1; i < s->slice_context_count; i++) {
av_freep(&s->thread_context[i]);
}
s->slice_context_count = 1;
} else free_duplicate_context(s);
av_freep(&s->parse_context.buffer);
s->parse_context.buffer_size = 0;
av_freep(&s->mb_type);
av_freep(&s->p_mv_table_base);
av_freep(&s->b_forw_mv_table_base);
@ -929,15 +945,50 @@ void ff_MPV_common_end(MpegEncContext *s)
av_freep(&s->pred_dir_table);
av_freep(&s->mbskip_table);
av_freep(&s->bitstream_buffer);
s->allocated_bitstream_buffer_size = 0;
av_freep(&s->avctx->stats_out);
av_freep(&s->ac_stats);
av_freep(&s->error_status_table);
av_freep(&s->er_temp_buffer);
av_freep(&s->mb_index2xy);
av_freep(&s->lambda_table);
av_freep(&s->cplx_tab);
av_freep(&s->bits_tab);
s->linesize = s->uvlinesize = 0;
for (i = 0; i < 3; i++)
av_freep(&s->visualization_buffer[i]);
if (!(s->avctx->active_thread_type & FF_THREAD_FRAME))
avcodec_default_free_buffers(s->avctx);
return 0;
}
/* init common structure for both encoder and decoder */
void ff_MPV_common_end(MpegEncContext *s)
{
int i;
if (s->slice_context_count > 1) {
for (i = 0; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
}
for (i = 1; i < s->slice_context_count; i++) {
av_freep(&s->thread_context[i]);
}
s->slice_context_count = 1;
} else free_duplicate_context(s);
av_freep(&s->parse_context.buffer);
s->parse_context.buffer_size = 0;
av_freep(&s->bitstream_buffer);
s->allocated_bitstream_buffer_size = 0;
av_freep(&s->avctx->stats_out);
av_freep(&s->ac_stats);
if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
s->q_chroma_intra_matrix= NULL;
@ -949,8 +1000,6 @@ void ff_MPV_common_end(MpegEncContext *s)
av_freep(&s->input_picture);
av_freep(&s->reordered_input_picture);
av_freep(&s->dct_offset);
av_freep(&s->cplx_tab);
av_freep(&s->bits_tab);
if (s->picture && !s->avctx->internal->is_copy) {
for (i = 0; i < s->picture_count; i++) {
@ -958,17 +1007,14 @@ void ff_MPV_common_end(MpegEncContext *s)
}
}
av_freep(&s->picture);
free_context_frame(s);
s->context_initialized = 0;
s->last_picture_ptr =
s->next_picture_ptr =
s->current_picture_ptr = NULL;
s->linesize = s->uvlinesize = 0;
for (i = 0; i < 3; i++)
av_freep(&s->visualization_buffer[i]);
if (!(s->avctx->active_thread_type & FF_THREAD_FRAME))
avcodec_default_free_buffers(s->avctx);
}
void ff_init_rl(RLTable *rl,

124
libavcodec/utils.c
Unescape View File

@ -62,7 +62,10 @@ void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
min_size = FFMAX(17 * min_size / 16 + 32, min_size);
ptr = av_realloc(ptr, min_size);
if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
/* we could set this to the unmodified min_size but this is safer
* if the user lost the ptr and uses NULL now
*/
if (!ptr)
min_size = 0;
*size = min_size;
@ -78,7 +81,8 @@ static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size,
min_size = FFMAX(17 * min_size / 16 + 32, min_size);
av_free(*p);
*p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
if (!*p) min_size = 0;
if (!*p)
min_size = 0;
*size = min_size;
return 1;
}
@ -117,8 +121,10 @@ static AVCodec *first_avcodec = NULL;
AVCodec *av_codec_next(const AVCodec *c)
{
if(c) return c->next;
else return first_avcodec;
if (c)
return c->next;
else
return first_avcodec;
}
static void avcodec_init(void)
@ -147,7 +153,8 @@ void avcodec_register(AVCodec *codec)
AVCodec **p;
avcodec_init();
p = &first_avcodec;
while (*p != NULL) p = &(*p)->next;
while (*p != NULL)
p = &(*p)->next;
*p = codec;
codec->next = NULL;
@ -160,7 +167,8 @@ unsigned avcodec_get_edge_width(void)
return EDGE_WIDTH;
}
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
{
s->coded_width = width;
s->coded_height = height;
s->width = -((-width ) >> s->lowres);
@ -253,7 +261,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
}
break;
case PIX_FMT_BGR24:
if((s->codec_id == AV_CODEC_ID_MSZH) || (s->codec_id == AV_CODEC_ID_ZLIB)){
if ((s->codec_id == AV_CODEC_ID_MSZH) ||
(s->codec_id == AV_CODEC_ID_ZLIB)) {
w_align = 4;
h_align = 4;
}
@ -271,17 +280,20 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
*width = FFALIGN(*width, w_align);
*height = FFALIGN(*height, h_align);
if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
*height+=2; // some of the optimized chroma MC reads one line too much
// some of the optimized chroma MC reads one line too much
// which is also done in mpeg decoders with lowres > 0
*height += 2;
for (i = 0; i < 4; i++)
linesize_align[i] = STRIDE_ALIGN;
}
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
{
int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
int linesize_align[AV_NUM_DATA_POINTERS];
int align;
avcodec_align_dimensions2(s, width, height, linesize_align);
align = FFMAX(linesize_align[0], linesize_align[3]);
linesize_align[1] <<= chroma_shift;
@ -376,7 +388,7 @@ static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
buf = avci->buffer;
/* if there is a previously-used internal buffer, check its size and
channel count to see if we can reuse it */
* channel count to see if we can reuse it */
if (buf->extended_data) {
/* if current buffer is too small, free it */
if (buf->extended_data[0] && buf_size > buf->audio_data_size) {
@ -387,7 +399,7 @@ static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
buf->data[0] = NULL;
}
/* if number of channels has changed, reset and/or free extended data
pointers but leave data buffer in buf->data[0] for reuse */
* pointers but leave data buffer in buf->data[0] for reuse */
if (buf->nb_channels != avctx->channels) {
if (buf->extended_data != buf->data)
av_free(buf->extended_data);
@ -396,7 +408,7 @@ static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
}
/* if there is no previous buffer or the previous buffer cannot be used
as-is, allocate a new buffer and/or rearrange the channel pointers */
* as-is, allocate a new buffer and/or rearrange the channel pointers */
if (!buf->extended_data) {
if (!buf->data[0]) {
if (!(buf->data[0] = av_mallocz(buf_size)))
@ -494,9 +506,8 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
w += w & ~(w - 1);
unaligned = 0;
for (i=0; i<4; i++){
for (i = 0; i < 4; i++)
unaligned |= picture.linesize[i] % stride_align[i];
}
} while (unaligned);
tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
@ -571,7 +582,8 @@ int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
}
}
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
{
int i;
InternalBuffer *buf, *last;
AVCodecInternal *avci = s->internal;
@ -596,10 +608,9 @@ void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
FFSWAP(InternalBuffer, *buf, *last);
}
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
pic->data[i] = NULL;
// pic->base[i]=NULL;
}
//printf("R%X\n", pic->opaque);
if (s->debug & FF_DEBUG_BUFFERS)
@ -607,7 +618,8 @@ void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
"buffers used\n", pic, avci->buffer_count);
}
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
{
AVFrame temp_pic;
int i;
@ -652,36 +664,45 @@ int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
return 0;
}
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
{
int i;
for (i = 0; i < count; i++) {
int r = func(c, (char *)arg + i * size);
if(ret) ret[i]= r;
if (ret)
ret[i] = r;
}
return 0;
}
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
{
int i;
for (i = 0; i < count; i++) {
int r = func(c, arg, i, 0);
if(ret) ret[i]= r;
if (ret)
ret[i] = r;
}
return 0;
}
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt)
{
while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
++fmt;
return fmt[0];
}
void avcodec_get_frame_defaults(AVFrame *pic){
void avcodec_get_frame_defaults(AVFrame *pic)
{
memset(pic, 0, sizeof(AVFrame));
pic->pts = pic->pkt_dts = pic->pkt_pts = pic->best_effort_timestamp = AV_NOPTS_VALUE;
pic->pts =
pic->pkt_dts =
pic->pkt_pts =
pic->best_effort_timestamp = AV_NOPTS_VALUE;
pic->pkt_duration = 0;
pic->pkt_pos = -1;
pic->key_frame = 1;
@ -689,10 +710,12 @@ void avcodec_get_frame_defaults(AVFrame *pic){
pic->format = -1; /* unknown */
}
AVFrame *avcodec_alloc_frame(void){
AVFrame *avcodec_alloc_frame(void)
{
AVFrame *pic = av_malloc(sizeof(AVFrame));
if(pic==NULL) return NULL;
if (pic == NULL)
return NULL;
avcodec_get_frame_defaults(pic);
@ -825,6 +848,7 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code
//We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions
if (!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == AV_CODEC_ID_H264)){
if (avctx->coded_width && avctx->coded_height)
avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
else if (avctx->width && avctx->height)
@ -839,7 +863,7 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code
}
/* if the decoder init function was already called previously,
free the already allocated subtitle_header before overwriting it */
* free the already allocated subtitle_header before overwriting it */
if (av_codec_is_decoder(codec))
av_freep(&avctx->subtitle_header);
@ -962,7 +986,8 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code
avctx->pts_correction_last_pts =
avctx->pts_correction_last_dts = INT64_MIN;
if(avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) || avctx->internal->frame_thread_encoder)){
if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
|| avctx->internal->frame_thread_encoder)) {
ret = avctx->codec->init(avctx);
if (ret < 0) {
goto free_and_end;
@ -1201,8 +1226,8 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
}
/* NOTE: if we add any audio encoders which output non-keyframe packets,
this needs to be moved to the encoders, but for now we can do it
here to simplify things */
* this needs to be moved to the encoders, but for now we can do it
* here to simplify things */
avpkt->flags |= AV_PKT_FLAG_KEY;
if (padded_frame) {
@ -1237,7 +1262,7 @@ int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
frame->nb_samples = avctx->frame_size;
} else {
/* if frame_size is not set, the number of samples must be
calculated from the buffer size */
* calculated from the buffer size */
int64_t nb_samples;
if (!av_get_bits_per_sample(avctx->codec_id)) {
av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
@ -1253,7 +1278,7 @@ int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
}
/* it is assumed that the samples buffer is large enough based on the
relevant parameters */
* relevant parameters */
samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
frame->nb_samples,
avctx->sample_fmt, 1);
@ -1264,8 +1289,8 @@ int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
return ret;
/* fabricate frame pts from sample count.
this is needed because the avcodec_encode_audio() API does not have
a way for the user to provide pts */
* this is needed because the avcodec_encode_audio() API does not have
* a way for the user to provide pts */
if (avctx->sample_rate && avctx->time_base.num)
frame->pts = ff_samples_to_time_base(avctx,
avctx->internal->sample_count);
@ -1290,6 +1315,7 @@ int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
return ret ? ret : pkt.size;
}
#endif
#if FF_API_OLD_ENCODE_VIDEO
@ -1325,6 +1351,7 @@ int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf
return ret ? ret : pkt.size;
}
#endif
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
@ -1519,14 +1546,10 @@ int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *pi
picture->pkt_pos = avpkt->pos;
}
//FIXME these should be under if(!avctx->has_b_frames)
if (!picture->sample_aspect_ratio.num)
picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
if (!picture->width)
picture->width = avctx->width;
if (!picture->height)
picture->height = avctx->height;
if (picture->format == PIX_FMT_NONE)
picture->format = avctx->pix_fmt;
if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
if (!picture->width) picture->width = avctx->width;
if (!picture->height) picture->height = avctx->height;
if (picture->format == PIX_FMT_NONE) picture->format = avctx->pix_fmt;
}
emms_c(); //needed to avoid an emms_c() call before every return;
@ -1596,6 +1619,7 @@ int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *sa
}
return ret;
}
#endif
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
@ -1714,8 +1738,7 @@ void avsubtitle_free(AVSubtitle *sub)
{
int i;
for (i = 0; i < sub->num_rects; i++)
{
for (i = 0; i < sub->num_rects; i++) {
av_freep(&sub->rects[i]->pict.data[0]);
av_freep(&sub->rects[i]->pict.data[1]);
av_freep(&sub->rects[i]->pict.data[2]);
@ -1925,6 +1948,7 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
snprintf(buf + strlen(buf), buf_size - strlen(buf),
" (%s / 0x%04X)", tag_buf, enc->codec_tag);
}
switch (enc->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if (enc->pix_fmt != PIX_FMT_NONE) {
@ -2324,9 +2348,11 @@ int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
}
#if !HAVE_THREADS
int ff_thread_init(AVCodecContext *s){
int ff_thread_init(AVCodecContext *s)
{
return -1;
}
#endif
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
@ -2343,7 +2369,8 @@ unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
return n;
}
int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
{
int i;
for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
return i;
@ -2394,11 +2421,10 @@ AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum PixelFormat pix_fmt)
{
AVHWAccel *hwaccel = NULL;
while((hwaccel= av_hwaccel_next(hwaccel))){
while ((hwaccel = av_hwaccel_next(hwaccel)))
if (hwaccel->id == codec_id
&& hwaccel->pix_fmt == pix_fmt)
return hwaccel;
}
return NULL;
}

2
libavformat/Makefile
Unescape View File

@ -318,7 +318,7 @@ OBJS-$(CONFIG_SIFF_DEMUXER) += siff.o
OBJS-$(CONFIG_SMACKER_DEMUXER) += smacker.o
OBJS-$(CONFIG_SMJPEG_DEMUXER) += smjpegdec.o smjpeg.o
OBJS-$(CONFIG_SMJPEG_MUXER) += smjpegenc.o smjpeg.o
OBJS-$(CONFIG_SMOOTHSTREAMING_MUXER) += smoothstreamingenc.o
OBJS-$(CONFIG_SMOOTHSTREAMING_MUXER) += smoothstreamingenc.o isom.o
OBJS-$(CONFIG_SMUSH_DEMUXER) += smush.o
OBJS-$(CONFIG_SOL_DEMUXER) += sol.o pcm.o
OBJS-$(CONFIG_SOX_DEMUXER) += soxdec.o pcm.o

72
libavformat/mov.c
Unescape View File

@ -1141,14 +1141,19 @@ static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->chunk_count = entries;
if (atom.type == MKTAG('s','t','c','o'))
for (i=0; i<entries; i++)
for (i = 0; i < entries && !pb->eof_reached; i++)
sc->chunk_offsets[i] = avio_rb32(pb);
else if (atom.type == MKTAG('c','o','6','4'))
for (i=0; i<entries; i++)
for (i = 0; i < entries && !pb->eof_reached; i++)
sc->chunk_offsets[i] = avio_rb64(pb);
else
return AVERROR_INVALIDDATA;
sc->chunk_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
return 0;
}
@ -1198,7 +1203,9 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
st = c->fc->streams[c->fc->nb_streams-1];
sc = st->priv_data;
for (pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
for (pseudo_stream_id = 0;
pseudo_stream_id < entries && !pb->eof_reached;
pseudo_stream_id++) {
//Parsing Sample description table
enum AVCodecID id;
int dref_id = 1;
@ -1483,6 +1490,9 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
avio_skip(pb, a.size);
}
if (pb->eof_reached)
return AVERROR_EOF;
if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
st->codec->sample_rate= sc->time_scale;
@ -1585,13 +1595,18 @@ static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
if (!sc->stsc_data)
return AVERROR(ENOMEM);
sc->stsc_count = entries;
for (i=0; i<entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
sc->stsc_data[i].first = avio_rb32(pb);
sc->stsc_data[i].count = avio_rb32(pb);
sc->stsc_data[i].id = avio_rb32(pb);
}
sc->stsc_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
return 0;
}
@ -1614,13 +1629,17 @@ static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
if (!sc->stps_data)
return AVERROR(ENOMEM);
sc->stps_count = entries;
for (i = 0; i < entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
sc->stps_data[i] = avio_rb32(pb);
//av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
}
sc->stps_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
return 0;
}
@ -1652,12 +1671,17 @@ static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->keyframes = av_malloc(entries * sizeof(int));
if (!sc->keyframes)
return AVERROR(ENOMEM);
sc->keyframe_count = entries;
for (i=0; i<entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
sc->keyframes[i] = avio_rb32(pb);
//av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
}
sc->keyframe_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
return 0;
}
@ -1725,11 +1749,16 @@ static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
init_get_bits(&gb, buf, 8*num_bytes);
for (i = 0; i < entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
sc->sample_sizes[i] = get_bits_long(&gb, field_size);
sc->data_size += sc->sample_sizes[i];
}
sc->sample_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
av_free(buf);
return 0;
}
@ -1761,9 +1790,7 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (!sc->stts_data)
return AVERROR(ENOMEM);
sc->stts_count = entries;
for (i=0; i<entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
int sample_duration;
int sample_count;
@ -1784,6 +1811,11 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
total_sample_count+=sample_count;
}
sc->stts_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
st->nb_frames= total_sample_count;
if (duration)
st->duration= duration;
@ -1815,9 +1847,8 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
if (!sc->ctts_data)
return AVERROR(ENOMEM);
sc->ctts_count = entries;
for (i=0; i<entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
int count =avio_rb32(pb);
int duration =avio_rb32(pb);
@ -1838,6 +1869,11 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->dts_shift = FFMAX(sc->dts_shift, -duration);
}
sc->ctts_count = i;
if (pb->eof_reached)
return AVERROR_EOF;
av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
return 0;
@ -2420,7 +2456,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
offset = frag->base_data_offset + data_offset;
distance = 0;
av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
for (i = 0; i < entries; i++) {
for (i = 0; i < entries && !pb->eof_reached; i++) {
unsigned sample_size = frag->size;
int sample_flags = i ? frag->flags : first_sample_flags;
unsigned sample_duration = frag->duration;
@ -2451,6 +2487,10 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
offset += sample_size;
sc->data_size += sample_size;
}
if (pb->eof_reached)
return AVERROR_EOF;
frag->moof_offset = offset;
st->duration = sc->track_end = dts + sc->time_offset;
return 0;

2
libavformat/smoothstreamingenc.c
Unescape View File

@ -30,6 +30,7 @@
#include "os_support.h"
#include "avc.h"
#include "url.h"
#include "isom.h"
#include "libavutil/opt.h"
#include "libavutil/avstring.h"
@ -617,5 +618,6 @@ AVOutputFormat ff_smoothstreaming_muxer = {
.write_header = ism_write_header,
.write_packet = ism_write_packet,
.write_trailer = ism_write_trailer,
.codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
.priv_class = &ism_class,
};

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