mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
Merge remote-tracking branch 'qatar/master'
* qatar/master: swfdec: Add support for sample_rate_code 0 (5512 Hz) dct-test: factor out some common code and do whas was likely intended doc: library versions need to be bumped in version.h Revert "ffmpeg: get rid of useless AVInputStream.nb_streams." Remove some forgotten AVCodecContext.palctrl usage. lavc/utils: move avcodec_init() higher in the file. lavc: replace some deprecated FF_*_TYPE with AV_PICTURE_TYPE_* ac3dec: actually use drc_scale private option lavc: undeprecate AVPALETTE_SIZE and AVPALETTE_COUNT macros alsa: add missing header msmpeg4: remove leftover unused debug variable declaration Fix assert() calls that need updates after FF_COMMON_FRAME macro elimination. Fix av_dlog invocations with wrong or missing logging context. vf_yadif: add support to yuva420p vf_yadif: correct documentation on the parity parameter vf_yadif: copy buffer properties like aspect for second frame as well oma: support for encrypted files id3v2: add support for non-text and GEOB type tag frames des: add possibility to calculate DES-CBC-MAC with small buffer Conflicts: ffmpeg.c libavcodec/dct-test.c libavformat/mpegts.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
commit
3e1a7ae44a
@ -310,7 +310,7 @@ send a reminder by email. Your patch should eventually be dealt with.
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AVInputFormat/AVOutputFormat struct?
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@item
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Did you bump the minor version number (and reset the micro version
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number) in @file{avcodec.h} or @file{avformat.h}?
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number) in @file{libavcodec/version.h} or @file{libavformat/version.h}?
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@item
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Did you register it in @file{allcodecs.c} or @file{allformats.c}?
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@item
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|
@ -176,6 +176,11 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx)
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AC3DecodeContext *s = avctx->priv_data;
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s->avctx = avctx;
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#if FF_API_DRC_SCALE
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if (avctx->drc_scale)
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s->drc_scale = avctx->drc_scale;
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#endif
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ff_ac3_common_init();
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ac3_tables_init();
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ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
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@ -788,7 +793,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
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do {
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if(get_bits1(gbc)) {
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s->dynamic_range[i] = ((dynamic_range_tab[get_bits(gbc, 8)]-1.0) *
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s->avctx->drc_scale)+1.0;
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s->drc_scale)+1.0;
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} else if(blk == 0) {
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s->dynamic_range[i] = 1.0f;
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}
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@ -3149,6 +3149,8 @@ typedef struct AVPicture {
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int linesize[4]; ///< number of bytes per line
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} AVPicture;
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#define AVPALETTE_SIZE 1024
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#define AVPALETTE_COUNT 256
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#if FF_API_PALETTE_CONTROL
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/**
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* AVPaletteControl
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@ -3158,8 +3160,6 @@ typedef struct AVPicture {
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* @deprecated Use AVPacket to send palette changes instead.
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* This is totally broken.
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*/
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#define AVPALETTE_SIZE 1024
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#define AVPALETTE_COUNT 256
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typedef struct AVPaletteControl {
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/* Demuxer sets this to 1 to indicate the palette has changed;
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@ -199,6 +199,55 @@ static inline void mmx_emms(void)
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#endif
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}
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static void init_block(DCTELEM block[64], int test, int is_idct, AVLFG *prng, int vals)
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{
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int i, j;
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memset(block, 0, 64 * sizeof(*block));
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switch (test) {
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case 0:
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for (i = 0; i < 64; i++)
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block[i] = (av_lfg_get(prng) % (2*vals)) -vals;
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if (is_idct) {
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ff_ref_fdct(block);
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for (i = 0; i < 64; i++)
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block[i] >>= 3;
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}
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break;
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case 1:
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j = av_lfg_get(prng) % 10 + 1;
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for (i = 0; i < j; i++)
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block[av_lfg_get(prng) % 64] = av_lfg_get(prng) % (2*vals) -vals;
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break;
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case 2:
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block[ 0] = av_lfg_get(prng) % (16*vals) - (8*vals);
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block[63] = (block[0] & 1) ^ 1;
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break;
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}
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}
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static void permute(DCTELEM dst[64], const DCTELEM src[64], int perm)
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{
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int i;
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if (perm == MMX_PERM) {
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for (i = 0; i < 64; i++)
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dst[idct_mmx_perm[i]] = src[i];
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} else if (perm == MMX_SIMPLE_PERM) {
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for (i = 0; i < 64; i++)
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dst[idct_simple_mmx_perm[i]] = src[i];
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} else if (perm == SSE2_PERM) {
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for (i = 0; i < 64; i++)
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dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
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} else if (perm == PARTTRANS_PERM) {
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for (i = 0; i < 64; i++)
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dst[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = src[i];
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} else {
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for (i = 0; i < 64; i++)
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dst[i] = src[i];
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}
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}
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static int dct_error(const struct algo *dct, int test, int is_idct, int speed, const int bits)
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{
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@ -221,46 +270,8 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
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for (i = 0; i < 64; i++)
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sysErr[i] = 0;
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for (it = 0; it < NB_ITS; it++) {
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for (i = 0; i < 64; i++)
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block1[i] = 0;
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switch (test) {
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case 0:
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for (i = 0; i < 64; i++)
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block1[i] = (av_lfg_get(&prng) % (2*vals)) -vals;
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if (is_idct) {
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ff_ref_fdct(block1);
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for (i = 0; i < 64; i++)
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block1[i] >>= 3;
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}
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break;
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case 1: {
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int num = av_lfg_get(&prng) % 10 + 1;
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for (i = 0; i < num; i++)
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block1[av_lfg_get(&prng) % 64] = av_lfg_get(&prng) % (2*vals) -vals;
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}
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break;
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case 2:
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block1[0] = av_lfg_get(&prng) % (16*vals) - (8*vals);
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block1[63] = (block1[0] & 1) ^ 1;
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break;
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}
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if (dct->format == MMX_PERM) {
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for (i = 0; i < 64; i++)
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block[idct_mmx_perm[i]] = block1[i];
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} else if (dct->format == MMX_SIMPLE_PERM) {
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for (i = 0; i < 64; i++)
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block[idct_simple_mmx_perm[i]] = block1[i];
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} else if (dct->format == SSE2_PERM) {
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for (i = 0; i < 64; i++)
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block[(i & 0x38) | idct_sse2_row_perm[i & 7]] = block1[i];
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} else if (dct->format == PARTTRANS_PERM) {
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for (i = 0; i < 64; i++)
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block[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = block1[i];
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} else {
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for (i = 0; i < 64; i++)
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block[i] = block1[i];
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}
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init_block(block1, test, is_idct, &prng, vals);
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permute(block, block1, dct->format);
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dct->func(block);
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mmx_emms();
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@ -317,45 +328,15 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
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return 0;
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/* speed test */
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for (i = 0; i < 64; i++)
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block1[i] = 0;
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switch (test) {
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case 0:
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for (i = 0; i < 64; i++)
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block1[i] = av_lfg_get(&prng) % (2*vals) -vals;
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if (is_idct) {
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ff_ref_fdct(block1);
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for (i = 0; i < 64; i++)
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block1[i] >>= 3;
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}
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break;
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case 1:
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case 2:
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block1[0] = av_lfg_get(&prng) % (2*vals) -vals;
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block1[1] = av_lfg_get(&prng) % (2*vals) -vals;
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block1[2] = av_lfg_get(&prng) % (2*vals) -vals;
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block1[3] = av_lfg_get(&prng) % (2*vals) -vals;
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break;
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}
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if (dct->format == MMX_PERM) {
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for (i = 0; i < 64; i++)
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block[idct_mmx_perm[i]] = block1[i];
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} else if (dct->format == MMX_SIMPLE_PERM) {
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for (i = 0; i < 64; i++)
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block[idct_simple_mmx_perm[i]] = block1[i];
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} else {
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for (i = 0; i < 64; i++)
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block[i] = block1[i];
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}
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init_block(block, test, is_idct, &prng, vals);
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permute(block1, block, dct->format);
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ti = gettime();
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it1 = 0;
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do {
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for (it = 0; it < NB_ITS_SPEED; it++) {
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for (i = 0; i < 64; i++)
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block[i] = block1[i];
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memcpy(block, block1, sizeof(block));
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dct->func(block);
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}
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it1 += NB_ITS_SPEED;
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|
@ -620,8 +620,8 @@ retry:
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}
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MPV_frame_end(s);
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assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
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assert(s->current_picture.pict_type == s->pict_type);
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assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
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assert(s->current_picture.f.pict_type == s->pict_type);
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*pict= *(AVFrame*)s->current_picture_ptr;
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ff_print_debug_info(s, pict);
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|
@ -2774,7 +2774,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
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if (s0->first_field) {
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assert(s0->current_picture_ptr);
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assert(s0->current_picture_ptr->f.data[0]);
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assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF);
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assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
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/* figure out if we have a complementary field pair */
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if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
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|
@ -172,7 +172,7 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
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int mv[2];
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int list;
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assert(h->ref_list[1][0].reference&3);
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assert(h->ref_list[1][0].f.reference & 3);
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await_reference_mb_row(h, &h->ref_list[1][0], s->mb_y + !!IS_INTERLACED(*mb_type));
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@ -416,7 +416,7 @@ static void pred_temp_direct_motion(H264Context * const h, int *mb_type){
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unsigned int sub_mb_type;
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int i8, i4;
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assert(h->ref_list[1][0].reference&3);
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assert(h->ref_list[1][0].f.reference & 3);
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await_reference_mb_row(h, &h->ref_list[1][0], s->mb_y + !!IS_INTERLACED(*mb_type));
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|
@ -1176,7 +1176,7 @@ static int mpeg_decode_update_thread_context(AVCodecContext *avctx, const AVCode
|
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if (!ctx->mpeg_enc_ctx_allocated)
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memcpy(s + 1, s1 + 1, sizeof(Mpeg1Context) - sizeof(MpegEncContext));
|
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|
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if (!(s->pict_type == FF_B_TYPE || s->low_delay))
|
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if (!(s->pict_type == AV_PICTURE_TYPE_B || s->low_delay))
|
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s->picture_number++;
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|
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return 0;
|
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|
@ -225,7 +225,7 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
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int r;
|
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|
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if (s->avctx->hwaccel) {
|
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assert(!pic->hwaccel_picture_private);
|
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assert(!pic->f.hwaccel_picture_private);
|
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if (s->avctx->hwaccel->priv_data_size) {
|
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pic->f.hwaccel_picture_private = av_mallocz(s->avctx->hwaccel->priv_data_size);
|
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if (!pic->f.hwaccel_picture_private) {
|
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@ -276,7 +276,7 @@ int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared){
|
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|
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if(shared){
|
||||
assert(pic->f.data[0]);
|
||||
assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED);
|
||||
assert(pic->f.type == 0 || pic->f.type == FF_BUFFER_TYPE_SHARED);
|
||||
pic->f.type = FF_BUFFER_TYPE_SHARED;
|
||||
}else{
|
||||
assert(!pic->f.data[0]);
|
||||
@ -539,7 +539,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src
|
||||
s->last_pict_type= s1->pict_type;
|
||||
if (s1->current_picture_ptr) s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality;
|
||||
|
||||
if(s1->pict_type!=FF_B_TYPE){
|
||||
if (s1->pict_type != AV_PICTURE_TYPE_B) {
|
||||
s->last_non_b_pict_type= s1->pict_type;
|
||||
}
|
||||
}
|
||||
@ -2662,6 +2662,6 @@ void ff_set_qscale(MpegEncContext * s, int qscale)
|
||||
|
||||
void MPV_report_decode_progress(MpegEncContext *s)
|
||||
{
|
||||
if (s->pict_type != FF_B_TYPE && !s->partitioned_frame && !s->error_occurred)
|
||||
if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->error_occurred)
|
||||
ff_thread_report_progress((AVFrame*)s->current_picture_ptr, s->mb_y, 0);
|
||||
}
|
||||
|
@ -1093,8 +1093,8 @@ static int select_input_picture(MpegEncContext *s){
|
||||
s->input_picture[0]->f.data[i] = NULL;
|
||||
s->input_picture[0]->f.type = 0;
|
||||
}else{
|
||||
assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
|
||||
|| s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
|
||||
assert( s->input_picture[0]->f.type == FF_BUFFER_TYPE_USER
|
||||
|| s->input_picture[0]->f.type == FF_BUFFER_TYPE_INTERNAL);
|
||||
|
||||
s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
|
||||
}
|
||||
@ -1220,8 +1220,8 @@ no_output_pic:
|
||||
}else{
|
||||
// input is not a shared pix -> reuse buffer for current_pix
|
||||
|
||||
assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
|
||||
|| s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
|
||||
assert( s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_USER
|
||||
|| s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_INTERNAL);
|
||||
|
||||
s->current_picture_ptr= s->reordered_input_picture[0];
|
||||
for(i=0; i<4; i++){
|
||||
@ -2757,7 +2757,7 @@ static int estimate_qp(MpegEncContext *s, int dry_run){
|
||||
|
||||
/* must be called before writing the header */
|
||||
static void set_frame_distances(MpegEncContext * s){
|
||||
assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
|
||||
assert(s->current_picture_ptr->f.pts != AV_NOPTS_VALUE);
|
||||
s->time = s->current_picture_ptr->f.pts * s->avctx->time_base.num;
|
||||
|
||||
if(s->pict_type==AV_PICTURE_TYPE_B){
|
||||
|
@ -62,10 +62,6 @@ static uint32_t v2_dc_chroma_table[512][2];
|
||||
/* vc1 externs */
|
||||
extern const uint8_t wmv3_dc_scale_table[32];
|
||||
|
||||
#ifdef DEBUG
|
||||
int frame_count = 0;
|
||||
#endif
|
||||
|
||||
#include "msmpeg4data.h"
|
||||
|
||||
#if CONFIG_ENCODERS //strangely gcc includes this even if it is not referenced
|
||||
|
@ -448,7 +448,7 @@ static const AVOption options[]={
|
||||
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},
|
||||
#endif
|
||||
#if FF_API_DRC_SCALE
|
||||
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 1.0 }, 0.0, 1.0, A|D},
|
||||
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 1.0, A|D},
|
||||
#endif
|
||||
#if FF_API_LAME_GLOBAL_OPTS
|
||||
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BIT_RESERVOIR }, INT_MIN, INT_MAX, A|E, "flags2"},
|
||||
@ -544,7 +544,6 @@ void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType codec_typ
|
||||
s->pix_fmt= PIX_FMT_NONE;
|
||||
s->sample_fmt= AV_SAMPLE_FMT_NONE;
|
||||
|
||||
s->palctrl = NULL;
|
||||
s->reget_buffer= avcodec_default_reget_buffer;
|
||||
s->reordered_opaque= AV_NOPTS_VALUE;
|
||||
}
|
||||
@ -623,7 +622,6 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
|
||||
/* set values specific to opened codecs back to their default state */
|
||||
dest->priv_data = NULL;
|
||||
dest->codec = NULL;
|
||||
dest->palctrl = NULL;
|
||||
dest->slice_offset = NULL;
|
||||
dest->internal_buffer = NULL;
|
||||
dest->hwaccel = NULL;
|
||||
|
@ -85,6 +85,20 @@ AVCodec *av_codec_next(AVCodec *c){
|
||||
else return first_avcodec;
|
||||
}
|
||||
|
||||
#if !FF_API_AVCODEC_INIT
|
||||
static
|
||||
#endif
|
||||
void avcodec_init(void)
|
||||
{
|
||||
static int initialized = 0;
|
||||
|
||||
if (initialized != 0)
|
||||
return;
|
||||
initialized = 1;
|
||||
|
||||
dsputil_static_init();
|
||||
}
|
||||
|
||||
void avcodec_register(AVCodec *codec)
|
||||
{
|
||||
AVCodec **p;
|
||||
@ -1144,20 +1158,6 @@ const char *avcodec_license(void)
|
||||
return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
|
||||
}
|
||||
|
||||
#if !FF_API_AVCODEC_INIT
|
||||
static
|
||||
#endif
|
||||
void avcodec_init(void)
|
||||
{
|
||||
static int initialized = 0;
|
||||
|
||||
if (initialized != 0)
|
||||
return;
|
||||
initialized = 1;
|
||||
|
||||
dsputil_static_init();
|
||||
}
|
||||
|
||||
void avcodec_flush_buffers(AVCodecContext *avctx)
|
||||
{
|
||||
if(HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
|
||||
|
@ -31,6 +31,7 @@
|
||||
#include <alsa/asoundlib.h>
|
||||
#include "avdevice.h"
|
||||
#include "libavutil/avassert.h"
|
||||
#include "libavutil/audioconvert.h"
|
||||
|
||||
#include "alsa-audio.h"
|
||||
|
||||
|
@ -66,63 +66,129 @@ static unsigned int get_size(AVIOContext *s, int len)
|
||||
return v;
|
||||
}
|
||||
|
||||
static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const char *key)
|
||||
/**
|
||||
* Free GEOB type extra metadata.
|
||||
*/
|
||||
static void free_geobtag(ID3v2ExtraMetaGEOB *geob)
|
||||
{
|
||||
char *q, dst[512];
|
||||
const char *val = NULL;
|
||||
int len, dstlen = sizeof(dst) - 1;
|
||||
unsigned genre;
|
||||
av_free(geob->mime_type);
|
||||
av_free(geob->file_name);
|
||||
av_free(geob->description);
|
||||
av_free(geob->data);
|
||||
av_free(geob);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decode characters to UTF-8 according to encoding type. The decoded buffer is
|
||||
* always null terminated.
|
||||
*
|
||||
* @param dst Pointer where the address of the buffer with the decoded bytes is
|
||||
* stored. Buffer must be freed by caller.
|
||||
* @param dstlen Pointer to an int where the length of the decoded string
|
||||
* is stored (in bytes, incl. null termination)
|
||||
* @param maxread Pointer to maximum number of characters to read from the
|
||||
* AVIOContext. After execution the value is decremented by the number of bytes
|
||||
* actually read.
|
||||
* @seeknull If true, decoding stops after the first U+0000 character found, if
|
||||
* there is any before maxread is reached
|
||||
* @returns 0 if no error occured, dst is uninitialized on error
|
||||
*/
|
||||
static int decode_str(AVFormatContext *s, AVIOContext *pb, int encoding,
|
||||
uint8_t **dst, int *dstlen, int *maxread, const int seeknull)
|
||||
{
|
||||
int len, ret;
|
||||
uint8_t tmp;
|
||||
uint32_t ch = 1;
|
||||
int left = *maxread;
|
||||
unsigned int (*get)(AVIOContext*) = avio_rb16;
|
||||
AVIOContext *dynbuf;
|
||||
|
||||
dst[0] = 0;
|
||||
if (taglen < 1)
|
||||
return;
|
||||
if ((ret = avio_open_dyn_buf(&dynbuf)) < 0) {
|
||||
av_log(s, AV_LOG_ERROR, "Error opening memory stream\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
taglen--; /* account for encoding type byte */
|
||||
|
||||
switch (avio_r8(pb)) { /* encoding type */
|
||||
switch (encoding) {
|
||||
|
||||
case ID3v2_ENCODING_ISO8859:
|
||||
q = dst;
|
||||
while (taglen-- && q - dst < dstlen - 7) {
|
||||
uint8_t tmp;
|
||||
PUT_UTF8(avio_r8(pb), tmp, *q++ = tmp;)
|
||||
while (left && (!seeknull || ch)) {
|
||||
ch = avio_r8(pb);
|
||||
PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
|
||||
left--;
|
||||
}
|
||||
*q = 0;
|
||||
break;
|
||||
|
||||
case ID3v2_ENCODING_UTF16BOM:
|
||||
taglen -= 2;
|
||||
if ((left -= 2) < 0) {
|
||||
av_log(s, AV_LOG_ERROR, "Cannot read BOM value, input too short\n");
|
||||
avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
|
||||
av_freep(dst);
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
switch (avio_rb16(pb)) {
|
||||
case 0xfffe:
|
||||
get = avio_rl16;
|
||||
case 0xfeff:
|
||||
break;
|
||||
default:
|
||||
av_log(s, AV_LOG_ERROR, "Incorrect BOM value in tag %s.\n", key);
|
||||
return;
|
||||
av_log(s, AV_LOG_ERROR, "Incorrect BOM value\n");
|
||||
avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
|
||||
av_freep(dst);
|
||||
*maxread = left;
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
// fall-through
|
||||
|
||||
case ID3v2_ENCODING_UTF16BE:
|
||||
q = dst;
|
||||
while (taglen > 1 && q - dst < dstlen - 7) {
|
||||
uint32_t ch;
|
||||
uint8_t tmp;
|
||||
|
||||
GET_UTF16(ch, ((taglen -= 2) >= 0 ? get(pb) : 0), break;)
|
||||
PUT_UTF8(ch, tmp, *q++ = tmp;)
|
||||
while ((left > 1) && (!seeknull || ch)) {
|
||||
GET_UTF16(ch, ((left -= 2) >= 0 ? get(pb) : 0), break;)
|
||||
PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
|
||||
}
|
||||
*q = 0;
|
||||
if (left < 0)
|
||||
left += 2; /* did not read last char from pb */
|
||||
break;
|
||||
|
||||
case ID3v2_ENCODING_UTF8:
|
||||
len = FFMIN(taglen, dstlen);
|
||||
avio_read(pb, dst, len);
|
||||
dst[len] = 0;
|
||||
while (left && (!seeknull || ch)) {
|
||||
ch = avio_r8(pb);
|
||||
avio_w8(dynbuf, ch);
|
||||
left--;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
av_log(s, AV_LOG_WARNING, "Unknown encoding in tag %s.\n", key);
|
||||
av_log(s, AV_LOG_WARNING, "Unknown encoding\n");
|
||||
}
|
||||
|
||||
if (ch)
|
||||
avio_w8(dynbuf, 0);
|
||||
|
||||
len = avio_close_dyn_buf(dynbuf, (uint8_t **)dst);
|
||||
if (dstlen)
|
||||
*dstlen = len;
|
||||
|
||||
*maxread = left;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a text tag.
|
||||
*/
|
||||
static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const char *key)
|
||||
{
|
||||
uint8_t *dst;
|
||||
const char *val = NULL;
|
||||
int len, dstlen;
|
||||
unsigned genre;
|
||||
|
||||
if (taglen < 1)
|
||||
return;
|
||||
|
||||
taglen--; /* account for encoding type byte */
|
||||
|
||||
if (decode_str(s, pb, avio_r8(pb), &dst, &dstlen, &taglen, 0) < 0) {
|
||||
av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", key);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!(strcmp(key, "TCON") && strcmp(key, "TCO"))
|
||||
@ -141,6 +207,82 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, const cha
|
||||
|
||||
if (val)
|
||||
av_dict_set(&s->metadata, key, val, AV_DICT_DONT_OVERWRITE);
|
||||
|
||||
av_free(dst);
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse GEOB tag into a ID3v2ExtraMetaGEOB struct.
|
||||
*/
|
||||
static void read_geobtag(AVFormatContext *s, AVIOContext *pb, int taglen, char *tag, ID3v2ExtraMeta **extra_meta)
|
||||
{
|
||||
ID3v2ExtraMetaGEOB *geob_data = NULL;
|
||||
ID3v2ExtraMeta *new_extra = NULL;
|
||||
char encoding;
|
||||
unsigned int len;
|
||||
|
||||
if (taglen < 1)
|
||||
return;
|
||||
|
||||
geob_data = av_mallocz(sizeof(ID3v2ExtraMetaGEOB));
|
||||
if (!geob_data) {
|
||||
av_log(s, AV_LOG_ERROR, "Failed to alloc %zu bytes\n", sizeof(ID3v2ExtraMetaGEOB));
|
||||
return;
|
||||
}
|
||||
|
||||
new_extra = av_mallocz(sizeof(ID3v2ExtraMeta));
|
||||
if (!new_extra) {
|
||||
av_log(s, AV_LOG_ERROR, "Failed to alloc %zu bytes\n", sizeof(ID3v2ExtraMeta));
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* read encoding type byte */
|
||||
encoding = avio_r8(pb);
|
||||
taglen--;
|
||||
|
||||
/* read MIME type (always ISO-8859) */
|
||||
if (decode_str(s, pb, ID3v2_ENCODING_ISO8859, &geob_data->mime_type, NULL, &taglen, 1) < 0
|
||||
|| taglen <= 0)
|
||||
goto fail;
|
||||
|
||||
/* read file name */
|
||||
if (decode_str(s, pb, encoding, &geob_data->file_name, NULL, &taglen, 1) < 0
|
||||
|| taglen <= 0)
|
||||
goto fail;
|
||||
|
||||
/* read content description */
|
||||
if (decode_str(s, pb, encoding, &geob_data->description, NULL, &taglen, 1) < 0
|
||||
|| taglen < 0)
|
||||
goto fail;
|
||||
|
||||
if (taglen) {
|
||||
/* save encapsulated binary data */
|
||||
geob_data->data = av_malloc(taglen);
|
||||
if (!geob_data->data) {
|
||||
av_log(s, AV_LOG_ERROR, "Failed to alloc %d bytes\n", taglen);
|
||||
goto fail;
|
||||
}
|
||||
if ((len = avio_read(pb, geob_data->data, taglen)) < taglen)
|
||||
av_log(s, AV_LOG_WARNING, "Error reading GEOB frame, data truncated.\n");
|
||||
geob_data->datasize = len;
|
||||
} else {
|
||||
geob_data->data = NULL;
|
||||
geob_data->datasize = 0;
|
||||
}
|
||||
|
||||
/* add data to the list */
|
||||
new_extra->tag = "GEOB";
|
||||
new_extra->data = geob_data;
|
||||
new_extra->next = *extra_meta;
|
||||
*extra_meta = new_extra;
|
||||
|
||||
return;
|
||||
|
||||
fail:
|
||||
av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", tag);
|
||||
free_geobtag(geob_data);
|
||||
av_free(new_extra);
|
||||
return;
|
||||
}
|
||||
|
||||
static int is_number(const char *str)
|
||||
@ -189,7 +331,27 @@ finish:
|
||||
av_dict_set(m, "date", date, 0);
|
||||
}
|
||||
|
||||
static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
|
||||
/**
|
||||
* Get the corresponding ID3v2EMFunc struct for a tag.
|
||||
* @param isv34 Determines if v2.2 or v2.3/4 strings are used
|
||||
* @return A pointer to the ID3v2EMFunc struct if found, NULL otherwise.
|
||||
*/
|
||||
static const ID3v2EMFunc *get_extra_meta_func(const char *tag, int isv34)
|
||||
{
|
||||
int i = 0;
|
||||
while (ff_id3v2_extra_meta_funcs[i].tag3) {
|
||||
if (!memcmp(tag,
|
||||
(isv34 ?
|
||||
ff_id3v2_extra_meta_funcs[i].tag4 :
|
||||
ff_id3v2_extra_meta_funcs[i].tag3),
|
||||
(isv34 ? 4 : 3)))
|
||||
return &ff_id3v2_extra_meta_funcs[i];
|
||||
i++;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags, ID3v2ExtraMeta **extra_meta)
|
||||
{
|
||||
int isv34, unsync;
|
||||
unsigned tlen;
|
||||
@ -198,8 +360,10 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
|
||||
int taghdrlen;
|
||||
const char *reason = NULL;
|
||||
AVIOContext pb;
|
||||
AVIOContext *pbx;
|
||||
unsigned char *buffer = NULL;
|
||||
int buffer_size = 0;
|
||||
void (*extra_func)(AVFormatContext*, AVIOContext*, int, char*, ID3v2ExtraMeta**) = NULL;
|
||||
|
||||
switch (version) {
|
||||
case 2:
|
||||
@ -264,7 +428,8 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
|
||||
if (tflags & (ID3v2_FLAG_ENCRYPTION | ID3v2_FLAG_COMPRESSION)) {
|
||||
av_log(s, AV_LOG_WARNING, "Skipping encrypted/compressed ID3v2 frame %s.\n", tag);
|
||||
avio_skip(s->pb, tlen);
|
||||
} else if (tag[0] == 'T') {
|
||||
/* check for text tag or supported special meta tag */
|
||||
} else if (tag[0] == 'T' || (extra_meta && (extra_func = get_extra_meta_func(tag, isv34)->read))) {
|
||||
if (unsync || tunsync) {
|
||||
int i, j;
|
||||
av_fast_malloc(&buffer, &buffer_size, tlen);
|
||||
@ -280,10 +445,17 @@ static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t
|
||||
}
|
||||
}
|
||||
ffio_init_context(&pb, buffer, j, 0, NULL, NULL, NULL, NULL);
|
||||
read_ttag(s, &pb, j, tag);
|
||||
tlen = j;
|
||||
pbx = &pb; // read from sync buffer
|
||||
} else {
|
||||
read_ttag(s, s->pb, tlen, tag);
|
||||
pbx = s->pb; // read straight from input
|
||||
}
|
||||
if (tag[0] == 'T')
|
||||
/* parse text tag */
|
||||
read_ttag(s, pbx, tlen, tag);
|
||||
else
|
||||
/* parse special meta tag */
|
||||
extra_func(s, pbx, tlen, tag, extra_meta);
|
||||
}
|
||||
else if (!tag[0]) {
|
||||
if (tag[1])
|
||||
@ -307,7 +479,7 @@ seek:
|
||||
return;
|
||||
}
|
||||
|
||||
void ff_id3v2_read(AVFormatContext *s, const char *magic)
|
||||
void ff_id3v2_read_all(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta)
|
||||
{
|
||||
int len, ret;
|
||||
uint8_t buf[ID3v2_HEADER_SIZE];
|
||||
@ -327,7 +499,7 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
|
||||
((buf[7] & 0x7f) << 14) |
|
||||
((buf[8] & 0x7f) << 7) |
|
||||
(buf[9] & 0x7f);
|
||||
ff_id3v2_parse(s, len, buf[3], buf[5]);
|
||||
ff_id3v2_parse(s, len, buf[3], buf[5], extra_meta);
|
||||
} else {
|
||||
avio_seek(s->pb, off, SEEK_SET);
|
||||
}
|
||||
@ -338,6 +510,30 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
|
||||
merge_date(&s->metadata);
|
||||
}
|
||||
|
||||
void ff_id3v2_read(AVFormatContext *s, const char *magic)
|
||||
{
|
||||
ff_id3v2_read_all(s, magic, NULL);
|
||||
}
|
||||
|
||||
void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta)
|
||||
{
|
||||
ID3v2ExtraMeta *current = *extra_meta, *next;
|
||||
void (*free_func)(ID3v2ExtraMeta*);
|
||||
|
||||
while (current) {
|
||||
if ((free_func = get_extra_meta_func(current->tag, 1)->free))
|
||||
free_func(current->data);
|
||||
next = current->next;
|
||||
av_freep(¤t);
|
||||
current = next;
|
||||
}
|
||||
}
|
||||
|
||||
const ID3v2EMFunc ff_id3v2_extra_meta_funcs[] = {
|
||||
{ "GEO", "GEOB", read_geobtag, free_geobtag },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
const AVMetadataConv ff_id3v2_34_metadata_conv[] = {
|
||||
{ "TALB", "album"},
|
||||
{ "TCOM", "composer"},
|
||||
|
@ -45,6 +45,27 @@ enum ID3v2Encoding {
|
||||
ID3v2_ENCODING_UTF8 = 3,
|
||||
};
|
||||
|
||||
typedef struct ID3v2ExtraMeta {
|
||||
const char *tag;
|
||||
void *data;
|
||||
struct ID3v2ExtraMeta *next;
|
||||
} ID3v2ExtraMeta;
|
||||
|
||||
typedef struct ID3v2ExtraMetaGEOB {
|
||||
uint32_t datasize;
|
||||
uint8_t *mime_type;
|
||||
uint8_t *file_name;
|
||||
uint8_t *description;
|
||||
uint8_t *data;
|
||||
} ID3v2ExtraMetaGEOB;
|
||||
|
||||
typedef struct ID3v2EMFunc {
|
||||
const char *tag3;
|
||||
const char *tag4;
|
||||
void (*read)(AVFormatContext*, AVIOContext*, int, char*, ID3v2ExtraMeta **);
|
||||
void (*free)();
|
||||
} ID3v2EMFunc;
|
||||
|
||||
/**
|
||||
* Detect ID3v2 Header.
|
||||
* @param buf must be ID3v2_HEADER_SIZE byte long
|
||||
@ -61,10 +82,25 @@ int ff_id3v2_match(const uint8_t *buf, const char *magic);
|
||||
int ff_id3v2_tag_len(const uint8_t *buf);
|
||||
|
||||
/**
|
||||
* Read an ID3v2 tag
|
||||
* Read an ID3v2 tag (text tags only)
|
||||
*/
|
||||
void ff_id3v2_read(AVFormatContext *s, const char *magic);
|
||||
|
||||
/**
|
||||
* Read an ID3v2 tag, including supported extra metadata (currently only GEOB)
|
||||
* @param extra_meta If not NULL, extra metadata is parsed into a list of
|
||||
* ID3v2ExtraMeta structs and *extra_meta points to the head of the list
|
||||
*/
|
||||
void ff_id3v2_read_all(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta);
|
||||
|
||||
/**
|
||||
* Free memory allocated parsing special (non-text) metadata.
|
||||
* @param extra_meta Pointer to a pointer to the head of a ID3v2ExtraMeta list, *extra_meta is set to NULL.
|
||||
*/
|
||||
void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta);
|
||||
|
||||
extern const ID3v2EMFunc ff_id3v2_extra_meta_funcs[];
|
||||
|
||||
extern const AVMetadataConv ff_id3v2_34_metadata_conv[];
|
||||
extern const AVMetadataConv ff_id3v2_4_metadata_conv[];
|
||||
extern const AVMetadataConv ff_id3v2_2_metadata_conv[];
|
||||
|
@ -2629,8 +2629,6 @@ static int mov_read_close(AVFormatContext *s)
|
||||
av_freep(&sc->drefs);
|
||||
if (sc->pb && sc->pb != s->pb)
|
||||
avio_close(sc->pb);
|
||||
|
||||
av_freep(&st->codec->palctrl);
|
||||
}
|
||||
|
||||
if (mov->dv_demux) {
|
||||
|
@ -1444,7 +1444,7 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
|
||||
|
||||
if (avio_tell(s->pb) != ts->last_pos) {
|
||||
int i;
|
||||
// av_dlog("Skipping after seek\n");
|
||||
av_dlog(ts->stream, "Skipping after seek\n");
|
||||
/* seek detected, flush pes buffer */
|
||||
for (i = 0; i < NB_PID_MAX; i++) {
|
||||
if (ts->pids[i]) {
|
||||
|
@ -3,6 +3,7 @@
|
||||
*
|
||||
* Copyright (c) 2008 Maxim Poliakovski
|
||||
* 2008 Benjamin Larsson
|
||||
* 2011 David Goldwich
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
@ -36,20 +37,19 @@
|
||||
* - Sound data organized in packets follow the EA3 header
|
||||
* (can be encrypted using the Sony DRM!).
|
||||
*
|
||||
* LIMITATIONS: This version supports only plain (unencrypted) OMA files.
|
||||
* If any DRM-protected (encrypted) file is encountered you will get the
|
||||
* corresponding error message. Try to remove the encryption using any
|
||||
* Sony software (for example SonicStage).
|
||||
* CODEC SUPPORT: Only ATRAC3 codec is currently supported!
|
||||
*/
|
||||
|
||||
#include "avformat.h"
|
||||
#include "libavutil/intreadwrite.h"
|
||||
#include "libavutil/des.h"
|
||||
#include "pcm.h"
|
||||
#include "riff.h"
|
||||
#include "id3v2.h"
|
||||
|
||||
#define EA3_HEADER_SIZE 96
|
||||
#define ID3v2_EA3_MAGIC "ea3"
|
||||
#define OMA_ENC_HEADER_SIZE 16
|
||||
|
||||
enum {
|
||||
OMA_CODECID_ATRAC3 = 0,
|
||||
@ -65,7 +65,211 @@ static const AVCodecTag codec_oma_tags[] = {
|
||||
{ CODEC_ID_MP3, OMA_CODECID_MP3 },
|
||||
};
|
||||
|
||||
#define ID3v2_EA3_MAGIC "ea3"
|
||||
static const uint64_t leaf_table[] = {
|
||||
0xd79e8283acea4620, 0x7a9762f445afd0d8,
|
||||
0x354d60a60b8c79f1, 0x584e1cde00b07aee,
|
||||
0x1573cd93da7df623, 0x47f98d79620dd535
|
||||
};
|
||||
|
||||
typedef struct OMAContext {
|
||||
uint64_t content_start;
|
||||
int encrypted;
|
||||
uint16_t k_size;
|
||||
uint16_t e_size;
|
||||
uint16_t i_size;
|
||||
uint16_t s_size;
|
||||
uint32_t rid;
|
||||
uint8_t r_val[24];
|
||||
uint8_t n_val[24];
|
||||
uint8_t m_val[8];
|
||||
uint8_t s_val[8];
|
||||
uint8_t sm_val[8];
|
||||
uint8_t e_val[8];
|
||||
uint8_t iv[8];
|
||||
struct AVDES av_des;
|
||||
} OMAContext;
|
||||
|
||||
static void hex_log(AVFormatContext *s, int level, const char *name, const uint8_t *value, int len)
|
||||
{
|
||||
char buf[33];
|
||||
len = FFMIN(len, 16);
|
||||
if (av_log_get_level() < level)
|
||||
return;
|
||||
ff_data_to_hex(buf, value, len, 1);
|
||||
buf[len<<1] = '\0';
|
||||
av_log(s, level, "%s: %s\n", name, buf);
|
||||
}
|
||||
|
||||
static int kset(AVFormatContext *s, const uint8_t *r_val, const uint8_t *n_val, int len)
|
||||
{
|
||||
OMAContext *oc = s->priv_data;
|
||||
|
||||
if (!r_val && !n_val)
|
||||
return -1;
|
||||
|
||||
len = FFMIN(len, 16);
|
||||
|
||||
/* use first 64 bits in the third round again */
|
||||
if (r_val) {
|
||||
if (r_val != oc->r_val) {
|
||||
memset(oc->r_val, 0, 24);
|
||||
memcpy(oc->r_val, r_val, len);
|
||||
}
|
||||
memcpy(&oc->r_val[16], r_val, 8);
|
||||
}
|
||||
if (n_val) {
|
||||
if (n_val != oc->n_val) {
|
||||
memset(oc->n_val, 0, 24);
|
||||
memcpy(oc->n_val, n_val, len);
|
||||
}
|
||||
memcpy(&oc->n_val[16], n_val, 8);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rprobe(AVFormatContext *s, uint8_t *enc_header, const uint8_t *r_val)
|
||||
{
|
||||
OMAContext *oc = s->priv_data;
|
||||
unsigned int pos;
|
||||
struct AVDES av_des;
|
||||
|
||||
if (!enc_header || !r_val)
|
||||
return -1;
|
||||
|
||||
/* m_val */
|
||||
av_des_init(&av_des, r_val, 192, 1);
|
||||
av_des_crypt(&av_des, oc->m_val, &enc_header[48], 1, NULL, 1);
|
||||
|
||||
/* s_val */
|
||||
av_des_init(&av_des, oc->m_val, 64, 0);
|
||||
av_des_crypt(&av_des, oc->s_val, NULL, 1, NULL, 0);
|
||||
|
||||
/* sm_val */
|
||||
pos = OMA_ENC_HEADER_SIZE + oc->k_size + oc->e_size;
|
||||
av_des_init(&av_des, oc->s_val, 64, 0);
|
||||
av_des_mac(&av_des, oc->sm_val, &enc_header[pos], (oc->i_size >> 3));
|
||||
|
||||
pos += oc->i_size;
|
||||
|
||||
return memcmp(&enc_header[pos], oc->sm_val, 8) ? -1 : 0;
|
||||
}
|
||||
|
||||
static int nprobe(AVFormatContext *s, uint8_t *enc_header, const uint8_t *n_val)
|
||||
{
|
||||
OMAContext *oc = s->priv_data;
|
||||
uint32_t pos, taglen, datalen;
|
||||
struct AVDES av_des;
|
||||
|
||||
if (!enc_header || !n_val)
|
||||
return -1;
|
||||
|
||||
pos = OMA_ENC_HEADER_SIZE + oc->k_size;
|
||||
if (!memcmp(&enc_header[pos], "EKB ", 4))
|
||||
pos += 32;
|
||||
|
||||
if (AV_RB32(&enc_header[pos]) != oc->rid)
|
||||
av_log(s, AV_LOG_DEBUG, "Mismatching RID\n");
|
||||
|
||||
taglen = AV_RB32(&enc_header[pos+32]);
|
||||
datalen = AV_RB32(&enc_header[pos+36]) >> 4;
|
||||
|
||||
pos += 44 + taglen;
|
||||
|
||||
av_des_init(&av_des, n_val, 192, 1);
|
||||
while (datalen-- > 0) {
|
||||
av_des_crypt(&av_des, oc->r_val, &enc_header[pos], 2, NULL, 1);
|
||||
kset(s, oc->r_val, NULL, 16);
|
||||
if (!rprobe(s, enc_header, oc->r_val))
|
||||
return 0;
|
||||
pos += 16;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int decrypt_init(AVFormatContext *s, ID3v2ExtraMeta *em, uint8_t *header)
|
||||
{
|
||||
OMAContext *oc = s->priv_data;
|
||||
ID3v2ExtraMetaGEOB *geob = NULL;
|
||||
uint8_t *gdata;
|
||||
|
||||
oc->encrypted = 1;
|
||||
av_log(s, AV_LOG_INFO, "File is encrypted\n");
|
||||
|
||||
/* find GEOB metadata */
|
||||
while (em) {
|
||||
if (!strcmp(em->tag, "GEOB") &&
|
||||
(geob = em->data) &&
|
||||
!strcmp(geob->description, "OMG_LSI") ||
|
||||
!strcmp(geob->description, "OMG_BKLSI")) {
|
||||
break;
|
||||
}
|
||||
em = em->next;
|
||||
}
|
||||
if (!em) {
|
||||
av_log(s, AV_LOG_ERROR, "No encryption header found\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (geob->datasize < 64) {
|
||||
av_log(s, AV_LOG_ERROR, "Invalid GEOB data size: %u\n", geob->datasize);
|
||||
return -1;
|
||||
}
|
||||
|
||||
gdata = geob->data;
|
||||
|
||||
if (AV_RB16(gdata) != 1)
|
||||
av_log(s, AV_LOG_WARNING, "Unknown version in encryption header\n");
|
||||
|
||||
oc->k_size = AV_RB16(&gdata[2]);
|
||||
oc->e_size = AV_RB16(&gdata[4]);
|
||||
oc->i_size = AV_RB16(&gdata[6]);
|
||||
oc->s_size = AV_RB16(&gdata[8]);
|
||||
|
||||
if (memcmp(&gdata[OMA_ENC_HEADER_SIZE], "KEYRING ", 12)) {
|
||||
av_log(s, AV_LOG_ERROR, "Invalid encryption header\n");
|
||||
return -1;
|
||||
}
|
||||
oc->rid = AV_RB32(&gdata[OMA_ENC_HEADER_SIZE + 28]);
|
||||
av_log(s, AV_LOG_DEBUG, "RID: %.8x\n", oc->rid);
|
||||
|
||||
memcpy(oc->iv, &header[0x58], 8);
|
||||
hex_log(s, AV_LOG_DEBUG, "IV", oc->iv, 8);
|
||||
|
||||
hex_log(s, AV_LOG_DEBUG, "CBC-MAC", &gdata[OMA_ENC_HEADER_SIZE+oc->k_size+oc->e_size+oc->i_size], 8);
|
||||
|
||||
if (s->keylen > 0) {
|
||||
kset(s, s->key, s->key, s->keylen);
|
||||
}
|
||||
if (!memcmp(oc->r_val, (const uint8_t[8]){0}, 8) ||
|
||||
rprobe(s, gdata, oc->r_val) < 0 &&
|
||||
nprobe(s, gdata, oc->n_val) < 0) {
|
||||
int i;
|
||||
for (i = 0; i < sizeof(leaf_table); i += 2) {
|
||||
uint8_t buf[16];
|
||||
AV_WL64(buf, leaf_table[i]);
|
||||
AV_WL64(&buf[8], leaf_table[i+1]);
|
||||
kset(s, buf, buf, 16);
|
||||
if (!rprobe(s, gdata, oc->r_val) || !nprobe(s, gdata, oc->n_val))
|
||||
break;
|
||||
}
|
||||
if (i >= sizeof(leaf_table)) {
|
||||
av_log(s, AV_LOG_ERROR, "Invalid key\n");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
/* e_val */
|
||||
av_des_init(&oc->av_des, oc->m_val, 64, 0);
|
||||
av_des_crypt(&oc->av_des, oc->e_val, &gdata[OMA_ENC_HEADER_SIZE + 40], 1, NULL, 0);
|
||||
hex_log(s, AV_LOG_DEBUG, "EK", oc->e_val, 8);
|
||||
|
||||
/* init e_val */
|
||||
av_des_init(&oc->av_des, oc->e_val, 64, 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int oma_read_header(AVFormatContext *s,
|
||||
AVFormatParameters *ap)
|
||||
@ -77,8 +281,10 @@ static int oma_read_header(AVFormatContext *s,
|
||||
uint8_t buf[EA3_HEADER_SIZE];
|
||||
uint8_t *edata;
|
||||
AVStream *st;
|
||||
ID3v2ExtraMeta *extra_meta = NULL;
|
||||
OMAContext *oc = s->priv_data;
|
||||
|
||||
ff_id3v2_read(s, ID3v2_EA3_MAGIC);
|
||||
ff_id3v2_read_all(s, ID3v2_EA3_MAGIC, &extra_meta);
|
||||
ret = avio_read(s->pb, buf, EA3_HEADER_SIZE);
|
||||
if (ret < EA3_HEADER_SIZE)
|
||||
return -1;
|
||||
@ -88,12 +294,17 @@ static int oma_read_header(AVFormatContext *s,
|
||||
return -1;
|
||||
}
|
||||
|
||||
oc->content_start = avio_tell(s->pb);
|
||||
|
||||
/* encrypted file */
|
||||
eid = AV_RB16(&buf[6]);
|
||||
if (eid != -1 && eid != -128) {
|
||||
av_log(s, AV_LOG_ERROR, "Encrypted file! Eid: %d\n", eid);
|
||||
if (eid != -1 && eid != -128 && decrypt_init(s, extra_meta, buf) < 0) {
|
||||
ff_id3v2_free_extra_meta(&extra_meta);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ff_id3v2_free_extra_meta(&extra_meta);
|
||||
|
||||
codec_params = AV_RB24(&buf[33]);
|
||||
|
||||
st = av_new_stream(s, 0);
|
||||
@ -159,12 +370,20 @@ static int oma_read_header(AVFormatContext *s,
|
||||
|
||||
static int oma_read_packet(AVFormatContext *s, AVPacket *pkt)
|
||||
{
|
||||
int ret = av_get_packet(s->pb, pkt, s->streams[0]->codec->block_align);
|
||||
OMAContext *oc = s->priv_data;
|
||||
int packet_size = s->streams[0]->codec->block_align;
|
||||
int ret = av_get_packet(s->pb, pkt, packet_size);
|
||||
|
||||
pkt->stream_index = 0;
|
||||
if (ret <= 0)
|
||||
return AVERROR(EIO);
|
||||
|
||||
pkt->stream_index = 0;
|
||||
|
||||
if (oc->encrypted) {
|
||||
/* previous unencrypted block saved in IV for the next packet (CBC mode) */
|
||||
av_des_crypt(&oc->av_des, pkt->data, pkt->data, (packet_size >> 3), oc->iv, 1);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -190,16 +409,38 @@ static int oma_read_probe(AVProbeData *p)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int oma_read_seek(struct AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
|
||||
{
|
||||
OMAContext *oc = s->priv_data;
|
||||
|
||||
pcm_read_seek(s, stream_index, timestamp, flags);
|
||||
|
||||
if (oc->encrypted) {
|
||||
/* readjust IV for CBC */
|
||||
int64_t pos = avio_tell(s->pb);
|
||||
if (pos < oc->content_start)
|
||||
memset(oc->iv, 0, 8);
|
||||
else {
|
||||
if (avio_seek(s->pb, -8, SEEK_CUR) < 0 || avio_read(s->pb, oc->iv, 8) < 8) {
|
||||
memset(oc->iv, 0, 8);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVInputFormat ff_oma_demuxer = {
|
||||
.name = "oma",
|
||||
.long_name = NULL_IF_CONFIG_SMALL("Sony OpenMG audio"),
|
||||
.priv_data_size = sizeof(OMAContext),
|
||||
.read_probe = oma_read_probe,
|
||||
.read_header = oma_read_header,
|
||||
.read_packet = oma_read_packet,
|
||||
.read_seek = pcm_read_seek,
|
||||
.flags= AVFMT_GENERIC_INDEX,
|
||||
.extensions = "oma,aa3",
|
||||
.codec_tag= (const AVCodecTag* const []){codec_oma_tags, 0},
|
||||
.read_seek = oma_read_seek,
|
||||
.flags = AVFMT_GENERIC_INDEX,
|
||||
.extensions = "oma,omg,aa3",
|
||||
.codec_tag = (const AVCodecTag* const []){codec_oma_tags, 0},
|
||||
};
|
||||
|
||||
|
@ -136,8 +136,9 @@ static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)
|
||||
ast->need_parsing = AVSTREAM_PARSE_FULL;
|
||||
sample_rate_code= (v>>2) & 3;
|
||||
if (!sample_rate_code)
|
||||
return AVERROR(EIO);
|
||||
ast->codec->sample_rate = 11025 << (sample_rate_code-1);
|
||||
ast->codec->sample_rate = 5512;
|
||||
else
|
||||
ast->codec->sample_rate = 11025 << (sample_rate_code-1);
|
||||
av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
|
||||
len -= 4;
|
||||
} else if (tag == TAG_VIDEOFRAME) {
|
||||
|
@ -298,7 +298,7 @@ int av_des_init(AVDES *d, const uint8_t *key, int key_bits, int decrypt) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) {
|
||||
static void av_des_crypt_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt, int mac) {
|
||||
uint64_t iv_val = iv ? AV_RB64(iv) : 0;
|
||||
while (count-- > 0) {
|
||||
uint64_t dst_val;
|
||||
@ -321,12 +321,21 @@ void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t
|
||||
}
|
||||
AV_WB64(dst, dst_val);
|
||||
src += 8;
|
||||
dst += 8;
|
||||
if (!mac)
|
||||
dst += 8;
|
||||
}
|
||||
if (iv)
|
||||
AV_WB64(iv, iv_val);
|
||||
}
|
||||
|
||||
void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) {
|
||||
av_des_crypt_mac(d, dst, src, count, iv, decrypt, 0);
|
||||
}
|
||||
|
||||
void av_des_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count) {
|
||||
av_des_crypt_mac(d, dst, src, count, (uint8_t[8]){0}, 0, 1);
|
||||
}
|
||||
|
||||
#ifdef TEST
|
||||
#undef printf
|
||||
#undef rand
|
||||
|
@ -33,7 +33,7 @@ struct AVDES {
|
||||
* @brief Initializes an AVDES context.
|
||||
*
|
||||
* @param key_bits must be 64 or 192
|
||||
* @param decrypt 0 for encryption, 1 for decryption
|
||||
* @param decrypt 0 for encryption/CBC-MAC, 1 for decryption
|
||||
*/
|
||||
int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
|
||||
|
||||
@ -49,4 +49,13 @@ int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
|
||||
*/
|
||||
void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
|
||||
|
||||
/**
|
||||
* @brief Calculates CBC-MAC using the DES algorithm.
|
||||
*
|
||||
* @param count number of 8 byte blocks
|
||||
* @param dst destination array, can be equal to src, must be 8-byte aligned
|
||||
* @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
|
||||
*/
|
||||
void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count);
|
||||
|
||||
#endif /* AVUTIL_DES_H */
|
||||
|
Loading…
Reference in New Issue
Block a user