/*
- * ASF compatible decoder.
- * Copyright (c) 2000, 2001 Fabrice Bellard.
+ * Copyright (c) 2000, 2001 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "avformat.h"
-#include "avi.h"
-#include "mpegaudio.h"
-#include "asf.h"
-#undef NDEBUG
-#include <assert.h>
+#include "asf.h"
-#define FRAME_HEADER_SIZE 17
-// Fix Me! FRAME_HEADER_SIZE may be different.
-static const GUID index_guid = {
- 0x33000890, 0xe5b1, 0x11cf, { 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb },
+const ff_asf_guid ff_asf_header = {
+ 0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C
};
-/**********************************/
-/* decoding */
-
-//#define DEBUG
+const ff_asf_guid ff_asf_file_header = {
+ 0xA1, 0xDC, 0xAB, 0x8C, 0x47, 0xA9, 0xCF, 0x11, 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
+};
-#ifdef DEBUG
-#define PRINT_IF_GUID(g,cmp) \
-if (!memcmp(g, &cmp, sizeof(GUID))) \
- printf("(GUID: %s) ", #cmp)
+const ff_asf_guid ff_asf_stream_header = {
+ 0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
+};
-static void print_guid(const GUID *g)
-{
- int i;
- PRINT_IF_GUID(g, asf_header);
- else PRINT_IF_GUID(g, file_header);
- else PRINT_IF_GUID(g, stream_header);
- else PRINT_IF_GUID(g, audio_stream);
- else PRINT_IF_GUID(g, audio_conceal_none);
- else PRINT_IF_GUID(g, video_stream);
- else PRINT_IF_GUID(g, video_conceal_none);
- else PRINT_IF_GUID(g, comment_header);
- else PRINT_IF_GUID(g, codec_comment_header);
- else PRINT_IF_GUID(g, codec_comment1_header);
- else PRINT_IF_GUID(g, data_header);
- else PRINT_IF_GUID(g, index_guid);
- else PRINT_IF_GUID(g, head1_guid);
- else PRINT_IF_GUID(g, head2_guid);
- else PRINT_IF_GUID(g, my_guid);
- else
- printf("(GUID: unknown) ");
- printf("0x%08x, 0x%04x, 0x%04x, {", g->v1, g->v2, g->v3);
- for(i=0;i<8;i++)
- printf(" 0x%02x,", g->v4[i]);
- printf("}\n");
-}
-#undef PRINT_IF_GUID(g,cmp)
-#endif
+const ff_asf_guid ff_asf_ext_stream_header = {
+ 0xCB, 0xA5, 0xE6, 0x14, 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A
+};
-static void get_guid(ByteIOContext *s, GUID *g)
-{
- int i;
+const ff_asf_guid ff_asf_audio_stream = {
+ 0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
+};
- g->v1 = get_le32(s);
- g->v2 = get_le16(s);
- g->v3 = get_le16(s);
- for(i=0;i<8;i++)
- g->v4[i] = get_byte(s);
-}
+const ff_asf_guid ff_asf_audio_conceal_none = {
+ // 0x40, 0xa4, 0xf1, 0x49, 0x4ece, 0x11d0, 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
+ // New value lifted from avifile
+ 0x00, 0x57, 0xfb, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b
+};
-#if 0
-static void get_str16(ByteIOContext *pb, char *buf, int buf_size)
-{
- int len, c;
- char *q;
-
- len = get_le16(pb);
- q = buf;
- while (len > 0) {
- c = get_le16(pb);
- if ((q - buf) < buf_size - 1)
- *q++ = c;
- len--;
- }
- *q = '\0';
-}
-#endif
+const ff_asf_guid ff_asf_audio_conceal_spread = {
+ 0x50, 0xCD, 0xC3, 0xBF, 0x8F, 0x61, 0xCF, 0x11, 0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20
+};
-static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size)
-{
- int c;
- char *q;
-
- q = buf;
- while (len > 0) {
- c = get_le16(pb);
- if ((q - buf) < buf_size - 1)
- *q++ = c;
- len-=2;
- }
- *q = '\0';
-}
+const ff_asf_guid ff_asf_video_stream = {
+ 0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
+};
-static int asf_probe(AVProbeData *pd)
-{
- GUID g;
- const unsigned char *p;
- int i;
-
- /* check file header */
- if (pd->buf_size <= 32)
- return 0;
- p = pd->buf;
- g.v1 = p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
- p += 4;
- g.v2 = p[0] | (p[1] << 8);
- p += 2;
- g.v3 = p[0] | (p[1] << 8);
- p += 2;
- for(i=0;i<8;i++)
- g.v4[i] = *p++;
-
- if (!memcmp(&g, &asf_header, sizeof(GUID)))
- return AVPROBE_SCORE_MAX;
- else
- return 0;
-}
+const ff_asf_guid ff_asf_jfif_media = {
+ 0x00, 0xE1, 0x1B, 0xB6, 0x4E, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
+};
-static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- ASFContext *asf = s->priv_data;
- GUID g;
- ByteIOContext *pb = &s->pb;
- AVStream *st;
- ASFStream *asf_st;
- int size, i;
- int64_t gsize;
-
- get_guid(pb, &g);
- if (memcmp(&g, &asf_header, sizeof(GUID)))
- goto fail;
- get_le64(pb);
- get_le32(pb);
- get_byte(pb);
- get_byte(pb);
- memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
- for(;;) {
- get_guid(pb, &g);
- gsize = get_le64(pb);
-#ifdef DEBUG
- printf("%08Lx: ", url_ftell(pb) - 24);
- print_guid(&g);
- printf(" size=0x%Lx\n", gsize);
-#endif
- if (gsize < 24)
- goto fail;
- if (!memcmp(&g, &file_header, sizeof(GUID))) {
- get_guid(pb, &asf->hdr.guid);
- asf->hdr.file_size = get_le64(pb);
- asf->hdr.create_time = get_le64(pb);
- asf->hdr.packets_count = get_le64(pb);
- asf->hdr.play_time = get_le64(pb);
- asf->hdr.send_time = get_le64(pb);
- asf->hdr.preroll = get_le32(pb);
- asf->hdr.ignore = get_le32(pb);
- asf->hdr.flags = get_le32(pb);
- asf->hdr.min_pktsize = get_le32(pb);
- asf->hdr.max_pktsize = get_le32(pb);
- asf->hdr.max_bitrate = get_le32(pb);
- asf->packet_size = asf->hdr.max_pktsize;
- asf->nb_packets = asf->hdr.packets_count;
- } else if (!memcmp(&g, &stream_header, sizeof(GUID))) {
- int type, total_size, type_specific_size, sizeX;
- unsigned int tag1;
- int64_t pos1, pos2;
-
- pos1 = url_ftell(pb);
-
- st = av_new_stream(s, 0);
- if (!st)
- goto fail;
- av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
- asf_st = av_mallocz(sizeof(ASFStream));
- if (!asf_st)
- goto fail;
- st->priv_data = asf_st;
- st->start_time = asf->hdr.preroll;
- st->duration = asf->hdr.send_time /
- (10000000 / 1000) - st->start_time;
- get_guid(pb, &g);
- if (!memcmp(&g, &audio_stream, sizeof(GUID))) {
- type = CODEC_TYPE_AUDIO;
- } else if (!memcmp(&g, &video_stream, sizeof(GUID))) {
- type = CODEC_TYPE_VIDEO;
- } else {
- goto fail;
- }
- get_guid(pb, &g);
- total_size = get_le64(pb);
- type_specific_size = get_le32(pb);
- get_le32(pb);
- st->id = get_le16(pb) & 0x7f; /* stream id */
- // mapping of asf ID to AV stream ID;
- asf->asfid2avid[st->id] = s->nb_streams - 1;
-
- get_le32(pb);
- st->codec->codec_type = type;
- if (type == CODEC_TYPE_AUDIO) {
- get_wav_header(pb, st->codec, type_specific_size);
- st->need_parsing = 1;
- /* We have to init the frame size at some point .... */
- pos2 = url_ftell(pb);
- if (gsize > (pos2 + 8 - pos1 + 24)) {
- asf_st->ds_span = get_byte(pb);
- asf_st->ds_packet_size = get_le16(pb);
- asf_st->ds_chunk_size = get_le16(pb);
- asf_st->ds_data_size = get_le16(pb);
- asf_st->ds_silence_data = get_byte(pb);
- }
- //printf("Descrambling: ps:%d cs:%d ds:%d s:%d sd:%d\n",
- // asf_st->ds_packet_size, asf_st->ds_chunk_size,
- // asf_st->ds_data_size, asf_st->ds_span, asf_st->ds_silence_data);
- if (asf_st->ds_span > 1) {
- if (!asf_st->ds_chunk_size
- || (asf_st->ds_packet_size/asf_st->ds_chunk_size <= 1))
- asf_st->ds_span = 0; // disable descrambling
- }
- switch (st->codec->codec_id) {
- case CODEC_ID_MP3:
- st->codec->frame_size = MPA_FRAME_SIZE;
- break;
- case CODEC_ID_PCM_S16LE:
- case CODEC_ID_PCM_S16BE:
- case CODEC_ID_PCM_U16LE:
- case CODEC_ID_PCM_U16BE:
- case CODEC_ID_PCM_S8:
- case CODEC_ID_PCM_U8:
- case CODEC_ID_PCM_ALAW:
- case CODEC_ID_PCM_MULAW:
- st->codec->frame_size = 1;
- break;
- default:
- /* This is probably wrong, but it prevents a crash later */
- st->codec->frame_size = 1;
- break;
- }
- } else {
- get_le32(pb);
- get_le32(pb);
- get_byte(pb);
- size = get_le16(pb); /* size */
- sizeX= get_le32(pb); /* size */
- st->codec->width = get_le32(pb);
- st->codec->height = get_le32(pb);
- /* not available for asf */
- get_le16(pb); /* panes */
- st->codec->bits_per_sample = get_le16(pb); /* depth */
- tag1 = get_le32(pb);
- url_fskip(pb, 20);
-// av_log(NULL, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX);
- size= sizeX;
- if (size > 40) {
- st->codec->extradata_size = size - 40;
- st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
- }
-
- /* Extract palette from extradata if bpp <= 8 */
- /* This code assumes that extradata contains only palette */
- /* This is true for all paletted codecs implemented in ffmpeg */
- if (st->codec->extradata_size && (st->codec->bits_per_sample <= 8)) {
- st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
-#ifdef WORDS_BIGENDIAN
- for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
- st->codec->palctrl->palette[i] = bswap_32(((uint32_t*)st->codec->extradata)[i]);
-#else
- memcpy(st->codec->palctrl->palette, st->codec->extradata,
- FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
-#endif
- st->codec->palctrl->palette_changed = 1;
- }
-
- st->codec->codec_tag = tag1;
- st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
- if(tag1 == MKTAG('D', 'V', 'R', ' '))
- st->need_parsing = 1;
- }
- pos2 = url_ftell(pb);
- url_fskip(pb, gsize - (pos2 - pos1 + 24));
- } else if (!memcmp(&g, &data_header, sizeof(GUID))) {
- break;
- } else if (!memcmp(&g, &comment_header, sizeof(GUID))) {
- int len1, len2, len3, len4, len5;
-
- len1 = get_le16(pb);
- len2 = get_le16(pb);
- len3 = get_le16(pb);
- len4 = get_le16(pb);
- len5 = get_le16(pb);
- get_str16_nolen(pb, len1, s->title, sizeof(s->title));
- get_str16_nolen(pb, len2, s->author, sizeof(s->author));
- get_str16_nolen(pb, len3, s->copyright, sizeof(s->copyright));
- get_str16_nolen(pb, len4, s->comment, sizeof(s->comment));
- url_fskip(pb, len5);
- } else if (!memcmp(&g, &extended_content_header, sizeof(GUID))) {
- int desc_count, i;
-
- desc_count = get_le16(pb);
- for(i=0;i<desc_count;i++)
- {
- int name_len,value_type,value_len,value_num = 0;
- char *name, *value;
-
- name_len = get_le16(pb);
- name = (char *)av_mallocz(name_len);
- get_str16_nolen(pb, name_len, name, name_len);
- value_type = get_le16(pb);
- value_len = get_le16(pb);
- if ((value_type == 0) || (value_type == 1)) // unicode or byte
- {
- value = (char *)av_mallocz(value_len);
- get_str16_nolen(pb, value_len, value, value_len);
- if (strcmp(name,"WM/AlbumTitle")==0) { pstrcpy(s->album, sizeof(s->album), value); }
- av_free(value);
- }
- if ((value_type >= 2) && (value_type <= 5)) // boolean or DWORD or QWORD or WORD
- {
- if (value_type==2) value_num = get_le32(pb);
- if (value_type==3) value_num = get_le32(pb);
- if (value_type==4) value_num = get_le64(pb);
- if (value_type==5) value_num = get_le16(pb);
- if (strcmp(name,"WM/Track")==0) s->track = value_num + 1;
- if (strcmp(name,"WM/TrackNumber")==0) s->track = value_num;
- }
- av_free(name);
- }
-#if 0
- } else if (!memcmp(&g, &head1_guid, sizeof(GUID))) {
- int v1, v2;
- get_guid(pb, &g);
- v1 = get_le32(pb);
- v2 = get_le16(pb);
- } else if (!memcmp(&g, &codec_comment_header, sizeof(GUID))) {
- int len, v1, n, num;
- char str[256], *q;
- char tag[16];
-
- get_guid(pb, &g);
- print_guid(&g);
-
- n = get_le32(pb);
- for(i=0;i<n;i++) {
- num = get_le16(pb); /* stream number */
- get_str16(pb, str, sizeof(str));
- get_str16(pb, str, sizeof(str));
- len = get_le16(pb);
- q = tag;
- while (len > 0) {
- v1 = get_byte(pb);
- if ((q - tag) < sizeof(tag) - 1)
- *q++ = v1;
- len--;
- }
- *q = '\0';
- }
-#endif
- } else if (url_feof(pb)) {
- goto fail;
- } else {
- url_fseek(pb, gsize - 24, SEEK_CUR);
- }
- }
- get_guid(pb, &g);
- get_le64(pb);
- get_byte(pb);
- get_byte(pb);
- if (url_feof(pb))
- goto fail;
- asf->data_offset = url_ftell(pb);
- asf->packet_size_left = 0;
-
- return 0;
-
- fail:
- for(i=0;i<s->nb_streams;i++) {
- AVStream *st = s->streams[i];
- if (st) {
- av_free(st->priv_data);
- av_free(st->codec->extradata);
- }
- av_free(st);
- }
- return -1;
-}
+const ff_asf_guid ff_asf_video_conceal_none = {
+ 0x00, 0x57, 0xFB, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
+};
-#define DO_2BITS(bits, var, defval) \
- switch (bits & 3) \
- { \
- case 3: var = get_le32(pb); rsize += 4; break; \
- case 2: var = get_le16(pb); rsize += 2; break; \
- case 1: var = get_byte(pb); rsize++; break; \
- default: var = defval; break; \
- }
+const ff_asf_guid ff_asf_command_stream = {
+ 0xC0, 0xCF, 0xDA, 0x59, 0xE6, 0x59, 0xD0, 0x11, 0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
+};
-static int asf_get_packet(AVFormatContext *s)
-{
- ASFContext *asf = s->priv_data;
- ByteIOContext *pb = &s->pb;
- uint32_t packet_length, padsize;
- int rsize = 9;
- int c;
-
- assert((url_ftell(&s->pb) - s->data_offset) % asf->packet_size == 0);
-
- c = get_byte(pb);
- if (c != 0x82) {
- if (!url_feof(pb))
- av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%lld\n", c, url_ftell(pb));
- }
- if ((c & 0x0f) == 2) { // always true for now
- if (get_le16(pb) != 0) {
- if (!url_feof(pb))
- av_log(s, AV_LOG_ERROR, "ff asf bad non zero\n");
- return AVERROR_IO;
- }
- rsize+=2;
-/* }else{
- if (!url_feof(pb))
- printf("ff asf bad header %x at:%lld\n", c, url_ftell(pb));
- return AVERROR_IO;*/
- }
+const ff_asf_guid ff_asf_comment_header = {
+ 0x33, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
+};
- asf->packet_flags = get_byte(pb);
- asf->packet_property = get_byte(pb);
+const ff_asf_guid ff_asf_codec_comment_header = {
+ 0x40, 0x52, 0xD1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
+};
+const ff_asf_guid ff_asf_codec_comment1_header = {
+ 0x41, 0x52, 0xd1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
+};
- DO_2BITS(asf->packet_flags >> 5, packet_length, asf->packet_size);
- DO_2BITS(asf->packet_flags >> 1, padsize, 0); // sequence ignored
- DO_2BITS(asf->packet_flags >> 3, padsize, 0); // padding length
+const ff_asf_guid ff_asf_data_header = {
+ 0x36, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
+};
- asf->packet_timestamp = get_le32(pb);
- get_le16(pb); /* duration */
- // rsize has at least 11 bytes which have to be present
+const ff_asf_guid ff_asf_head1_guid = {
+ 0xb5, 0x03, 0xbf, 0x5f, 0x2E, 0xA9, 0xCF, 0x11, 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
+};
- if (asf->packet_flags & 0x01) {
- asf->packet_segsizetype = get_byte(pb); rsize++;
- asf->packet_segments = asf->packet_segsizetype & 0x3f;
- } else {
- asf->packet_segments = 1;
- asf->packet_segsizetype = 0x80;
- }
- asf->packet_size_left = packet_length - padsize - rsize;
- if (packet_length < asf->hdr.min_pktsize)
- padsize += asf->hdr.min_pktsize - packet_length;
- asf->packet_padsize = padsize;
-#ifdef DEBUG
- printf("packet: size=%d padsize=%d left=%d\n", asf->packet_size, asf->packet_padsize, asf->packet_size_left);
-#endif
- return 0;
-}
+const ff_asf_guid ff_asf_head2_guid = {
+ 0x11, 0xd2, 0xd3, 0xab, 0xBA, 0xA9, 0xCF, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
+};
-static int asf_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- ASFContext *asf = s->priv_data;
- ASFStream *asf_st = 0;
- ByteIOContext *pb = &s->pb;
- //static int pc = 0;
- for (;;) {
- int rsize = 0;
- if (asf->packet_size_left < FRAME_HEADER_SIZE
- || asf->packet_segments < 1) {
- //asf->packet_size_left <= asf->packet_padsize) {
- int ret = asf->packet_size_left + asf->packet_padsize;
- //printf("PacketLeftSize:%d Pad:%d Pos:%Ld\n", asf->packet_size_left, asf->packet_padsize, url_ftell(pb));
- if((url_ftell(&s->pb) + ret - s->data_offset) % asf->packet_size)
- ret += asf->packet_size - ((url_ftell(&s->pb) + ret - s->data_offset) % asf->packet_size);
- /* fail safe */
- url_fskip(pb, ret);
- asf->packet_pos= url_ftell(&s->pb);
- ret = asf_get_packet(s);
- //printf("READ ASF PACKET %d r:%d c:%d\n", ret, asf->packet_size_left, pc++);
- if (ret < 0 || url_feof(pb))
- return AVERROR_IO;
- asf->packet_time_start = 0;
- continue;
- }
- if (asf->packet_time_start == 0) {
- /* read frame header */
- int num = get_byte(pb);
- asf->packet_segments--;
- rsize++;
- asf->packet_key_frame = (num & 0x80) >> 7;
- asf->stream_index = asf->asfid2avid[num & 0x7f];
- // sequence should be ignored!
- DO_2BITS(asf->packet_property >> 4, asf->packet_seq, 0);
- DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0);
- DO_2BITS(asf->packet_property, asf->packet_replic_size, 0);
-//printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size);
- if (asf->packet_replic_size > 1) {
- assert(asf->packet_replic_size >= 8);
- // it should be always at least 8 bytes - FIXME validate
- asf->packet_obj_size = get_le32(pb);
- asf->packet_frag_timestamp = get_le32(pb); // timestamp
- if (asf->packet_replic_size > 8)
- url_fskip(pb, asf->packet_replic_size - 8);
- rsize += asf->packet_replic_size; // FIXME - check validity
- } else if (asf->packet_replic_size==1){
- // multipacket - frag_offset is begining timestamp
- asf->packet_time_start = asf->packet_frag_offset;
- asf->packet_frag_offset = 0;
- asf->packet_frag_timestamp = asf->packet_timestamp;
-
- asf->packet_time_delta = get_byte(pb);
- rsize++;
- }else{
- assert(asf->packet_replic_size==0);
- }
- if (asf->packet_flags & 0x01) {
- DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal
-#undef DO_2BITS
- //printf("Fragsize %d\n", asf->packet_frag_size);
- } else {
- asf->packet_frag_size = asf->packet_size_left - rsize;
- //printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize);
- }
- if (asf->packet_replic_size == 1) {
- asf->packet_multi_size = asf->packet_frag_size;
- if (asf->packet_multi_size > asf->packet_size_left) {
- asf->packet_segments = 0;
- continue;
- }
- }
- asf->packet_size_left -= rsize;
- //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize);
-
- if (asf->stream_index < 0
- || s->streams[asf->stream_index]->discard >= AVDISCARD_ALL
- || (!asf->packet_key_frame && s->streams[asf->stream_index]->discard >= AVDISCARD_NONKEY)
- ) {
- asf->packet_time_start = 0;
- /* unhandled packet (should not happen) */
- url_fskip(pb, asf->packet_frag_size);
- asf->packet_size_left -= asf->packet_frag_size;
- if(asf->stream_index < 0)
- av_log(s, AV_LOG_ERROR, "ff asf skip %d %d\n", asf->packet_frag_size, num & 0x7f);
- continue;
- }
- asf->asf_st = s->streams[asf->stream_index]->priv_data;
- }
- asf_st = asf->asf_st;
-
- if ((asf->packet_frag_offset != asf_st->frag_offset
- || (asf->packet_frag_offset
- && asf->packet_seq != asf_st->seq)) // seq should be ignored
- ) {
- /* cannot continue current packet: free it */
- // FIXME better check if packet was already allocated
- av_log(s, AV_LOG_INFO, "ff asf parser skips: %d - %d o:%d - %d %d %d fl:%d\n",
- asf_st->pkt.size,
- asf->packet_obj_size,
- asf->packet_frag_offset, asf_st->frag_offset,
- asf->packet_seq, asf_st->seq, asf->packet_frag_size);
- if (asf_st->pkt.size)
- av_free_packet(&asf_st->pkt);
- asf_st->frag_offset = 0;
- if (asf->packet_frag_offset != 0) {
- url_fskip(pb, asf->packet_frag_size);
- av_log(s, AV_LOG_INFO, "ff asf parser skipping %db\n", asf->packet_frag_size);
- asf->packet_size_left -= asf->packet_frag_size;
- continue;
- }
- }
- if (asf->packet_replic_size == 1) {
- // frag_offset is here used as the begining timestamp
- asf->packet_frag_timestamp = asf->packet_time_start;
- asf->packet_time_start += asf->packet_time_delta;
- asf->packet_obj_size = asf->packet_frag_size = get_byte(pb);
- asf->packet_size_left--;
- asf->packet_multi_size--;
- if (asf->packet_multi_size < asf->packet_obj_size)
- {
- asf->packet_time_start = 0;
- url_fskip(pb, asf->packet_multi_size);
- asf->packet_size_left -= asf->packet_multi_size;
- continue;
- }
- asf->packet_multi_size -= asf->packet_obj_size;
- //printf("COMPRESS size %d %d %d ms:%d\n", asf->packet_obj_size, asf->packet_frag_timestamp, asf->packet_size_left, asf->packet_multi_size);
- }
- if (asf_st->frag_offset == 0) {
- /* new packet */
- av_new_packet(&asf_st->pkt, asf->packet_obj_size);
- asf_st->seq = asf->packet_seq;
- asf_st->pkt.pts = asf->packet_frag_timestamp;
- asf_st->pkt.stream_index = asf->stream_index;
- asf_st->pkt.pos =
- asf_st->packet_pos= asf->packet_pos;
-//printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n",
-//asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & PKT_FLAG_KEY,
-//s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO, asf->packet_obj_size);
- if (s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO)
- asf->packet_key_frame = 1;
- if (asf->packet_key_frame)
- asf_st->pkt.flags |= PKT_FLAG_KEY;
- }
-
- /* read data */
- //printf("READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n",
- // asf->packet_size, asf_st->pkt.size, asf->packet_frag_offset,
- // asf_st->frag_offset, asf->packet_frag_size, asf_st->pkt.data);
- asf->packet_size_left -= asf->packet_frag_size;
- if (asf->packet_size_left < 0)
- continue;
- get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset,
- asf->packet_frag_size);
- asf_st->frag_offset += asf->packet_frag_size;
- /* test if whole packet is read */
- if (asf_st->frag_offset == asf_st->pkt.size) {
- /* return packet */
- if (asf_st->ds_span > 1) {
- /* packet descrambling */
- char* newdata = av_malloc(asf_st->pkt.size);
- if (newdata) {
- int offset = 0;
- while (offset < asf_st->pkt.size) {
- int off = offset / asf_st->ds_chunk_size;
- int row = off / asf_st->ds_span;
- int col = off % asf_st->ds_span;
- int idx = row + col * asf_st->ds_packet_size / asf_st->ds_chunk_size;
- //printf("off:%d row:%d col:%d idx:%d\n", off, row, col, idx);
- memcpy(newdata + offset,
- asf_st->pkt.data + idx * asf_st->ds_chunk_size,
- asf_st->ds_chunk_size);
- offset += asf_st->ds_chunk_size;
- }
- av_free(asf_st->pkt.data);
- asf_st->pkt.data = newdata;
- }
- }
- asf_st->frag_offset = 0;
- memcpy(pkt, &asf_st->pkt, sizeof(AVPacket));
- //printf("packet %d %d\n", asf_st->pkt.size, asf->packet_frag_size);
- asf_st->pkt.size = 0;
- asf_st->pkt.data = 0;
- break; // packet completed
- }
- }
- return 0;
-}
+const ff_asf_guid ff_asf_extended_content_header = {
+ 0x40, 0xA4, 0xD0, 0xD2, 0x07, 0xE3, 0xD2, 0x11, 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50
+};
-static int asf_read_close(AVFormatContext *s)
-{
- int i;
+const ff_asf_guid ff_asf_simple_index_header = {
+ 0x90, 0x08, 0x00, 0x33, 0xB1, 0xE5, 0xCF, 0x11, 0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB
+};
- for(i=0;i<s->nb_streams;i++) {
- AVStream *st = s->streams[i];
- av_free(st->priv_data);
- av_free(st->codec->extradata);
- av_free(st->codec->palctrl);
- }
- return 0;
-}
+const ff_asf_guid ff_asf_ext_stream_embed_stream_header = {
+ 0xe2, 0x65, 0xfb, 0x3a, 0xEF, 0x47, 0xF2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43
+};
-// Added to support seeking after packets have been read
-// If information is not reset, read_packet fails due to
-// leftover information from previous reads
-static void asf_reset_header(AVFormatContext *s)
-{
- ASFContext *asf = s->priv_data;
- ASFStream *asf_st;
- int i;
-
- asf->packet_nb_frames = 0;
- asf->packet_timestamp_start = -1;
- asf->packet_timestamp_end = -1;
- asf->packet_size_left = 0;
- asf->packet_segments = 0;
- asf->packet_flags = 0;
- asf->packet_property = 0;
- asf->packet_timestamp = 0;
- asf->packet_segsizetype = 0;
- asf->packet_segments = 0;
- asf->packet_seq = 0;
- asf->packet_replic_size = 0;
- asf->packet_key_frame = 0;
- asf->packet_padsize = 0;
- asf->packet_frag_offset = 0;
- asf->packet_frag_size = 0;
- asf->packet_frag_timestamp = 0;
- asf->packet_multi_size = 0;
- asf->packet_obj_size = 0;
- asf->packet_time_delta = 0;
- asf->packet_time_start = 0;
-
- for(i=0; i<s->nb_streams; i++){
- asf_st= s->streams[i]->priv_data;
- av_free_packet(&asf_st->pkt);
- asf_st->frag_offset=0;
- asf_st->seq=0;
- }
- asf->asf_st= NULL;
-}
+const ff_asf_guid ff_asf_ext_stream_audio_stream = {
+ 0x9d, 0x8c, 0x17, 0x31, 0xE1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03
+};
-static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
-{
- ASFContext *asf = s->priv_data;
- AVPacket pkt1, *pkt = &pkt1;
- ASFStream *asf_st;
- int64_t pts;
- int64_t pos= *ppos;
- int i;
- int64_t start_pos[s->nb_streams];
-
- for(i=0; i<s->nb_streams; i++){
- start_pos[i]= pos;
- }
-
- pos= (pos+asf->packet_size-1-s->data_offset)/asf->packet_size*asf->packet_size+ s->data_offset;
- *ppos= pos;
- url_fseek(&s->pb, pos, SEEK_SET);
-
-//printf("asf_read_pts\n");
- asf_reset_header(s);
- for(;;){
- if (av_read_frame(s, pkt) < 0){
- av_log(s, AV_LOG_INFO, "seek failed\n");
- return AV_NOPTS_VALUE;
- }
-
- pts= pkt->pts * 1000 / AV_TIME_BASE;
-
- av_free_packet(pkt);
- if(pkt->flags&PKT_FLAG_KEY){
- i= pkt->stream_index;
-
- asf_st= s->streams[i]->priv_data;
-
- assert((asf_st->packet_pos - s->data_offset) % asf->packet_size == 0);
- pos= asf_st->packet_pos;
-
- av_add_index_entry(s->streams[i], pos, pts, pos - start_pos[i] + 1, AVINDEX_KEYFRAME);
- start_pos[i]= asf_st->packet_pos + 1;
-
- if(pkt->stream_index == stream_index)
- break;
- }
- }
+const ff_asf_guid ff_asf_metadata_header = {
+ 0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca
+};
- *ppos= pos;
-//printf("found keyframe at %Ld stream %d stamp:%Ld\n", *ppos, stream_index, pts);
+const ff_asf_guid ff_asf_marker_header = {
+ 0x01, 0xCD, 0x87, 0xF4, 0x51, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
+};
- return pts;
-}
+/* I am not a number !!! This GUID is the one found on the PC used to
+ generate the stream */
+const ff_asf_guid ff_asf_my_guid = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
-static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags)
-{
- ASFContext *asf = s->priv_data;
-
- if (asf->packet_size <= 0)
- return -1;
+const ff_asf_guid ff_asf_language_guid = {
+ 0xa9, 0x46, 0x43, 0x7c, 0xe0, 0xef, 0xfc, 0x4b, 0xb2, 0x29, 0x39, 0x3e, 0xde, 0x41, 0x5c, 0x85
+};
- if(av_seek_frame_binary(s, stream_index, pts, flags)<0)
- return -1;
+const ff_asf_guid ff_asf_content_encryption = {
+ 0xfb, 0xb3, 0x11, 0x22, 0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e
+};
- asf_reset_header(s);
- return 0;
-}
+const ff_asf_guid ff_asf_ext_content_encryption = {
+ 0x14, 0xe6, 0x8a, 0x29, 0x22, 0x26, 0x17, 0x4c, 0xb9, 0x35, 0xda, 0xe0, 0x7e, 0xe9, 0x28, 0x9c
+};
-static AVInputFormat asf_iformat = {
- "asf",
- "asf format",
- sizeof(ASFContext),
- asf_probe,
- asf_read_header,
- asf_read_packet,
- asf_read_close,
- asf_read_seek,
- asf_read_pts,
+const ff_asf_guid ff_asf_digital_signature = {
+ 0xfc, 0xb3, 0x11, 0x22, 0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e
};
-#ifdef CONFIG_ENCODERS
- extern AVOutputFormat asf_oformat;
- extern AVOutputFormat asf_stream_oformat;
-#endif //CONFIG_ENCODERS
+/* List of official tags at http://msdn.microsoft.com/en-us/library/dd743066(VS.85).aspx */
+const AVMetadataConv ff_asf_metadata_conv[] = {
+ { "WM/AlbumArtist" , "album_artist"},
+ { "WM/AlbumTitle" , "album" },
+ { "Author" , "artist" },
+ { "Description" , "comment" },
+ { "WM/Composer" , "composer" },
+ { "WM/EncodedBy" , "encoded_by" },
+ { "WM/EncodingSettings", "encoder" },
+ { "WM/Genre" , "genre" },
+ { "WM/Language" , "language" },
+ { "WM/OriginalFilename", "filename" },
+ { "WM/PartOfSet" , "disc" },
+ { "WM/Publisher" , "publisher" },
+ { "WM/Tool" , "encoder" },
+ { "WM/TrackNumber" , "track" },
+ { "WM/Track" , "track" },
+// { "Year" , "date" }, TODO: conversion year<->date
+ { 0 }
+};
-int asf_init(void)
+int ff_put_str16_nolen(ByteIOContext *s, const char *tag)
{
- av_register_input_format(&asf_iformat);
-#ifdef CONFIG_ENCODERS
- av_register_output_format(&asf_oformat);
- av_register_output_format(&asf_stream_oformat);
-#endif //CONFIG_ENCODERS
- return 0;
+ const uint8_t *q = tag;
+ int ret = 0;
+
+ while (*q) {
+ uint32_t ch;
+ uint16_t tmp;
+
+ GET_UTF8(ch, *q++, break;)
+ PUT_UTF16(ch, tmp, put_le16(s, tmp);ret += 2;)
+ }
+ put_le16(s, 0);
+ ret += 2;
+ return ret;
}
projects / ffmpeg / blobdiff