static int read_header(AVFormatContext *s)
{
AnmDemuxContext *anm = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st;
int i, ret;
avio_skip(pb, 4); /* magic number */
if (avio_rl16(pb) != MAX_PAGES) {
avpriv_request_sample(s, "max_pages != " AV_STRINGIFY(MAX_PAGES));
return AVERROR_PATCHWELCOME;
}
anm->nb_pages = avio_rl16(pb);
anm->nb_records = avio_rl32(pb);
avio_skip(pb, 2); /* max records per page */
anm->page_table_offset = avio_rl16(pb);
if (avio_rl32(pb) != ANIM_TAG)
return AVERROR_INVALIDDATA;
/* video stream */
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
st->codecpar->codec_id = AV_CODEC_ID_ANM;
st->codecpar->codec_tag = 0; /* no fourcc */
st->codecpar->width = avio_rl16(pb);
st->codecpar->height = avio_rl16(pb);
if (avio_r8(pb) != 0)
goto invalid;
avio_skip(pb, 1); /* frame rate multiplier info */
/* ignore last delta record (used for looping) */
if (avio_r8(pb)) /* has_last_delta */
anm->nb_records = FFMAX(anm->nb_records - 1, 0);
avio_skip(pb, 1); /* last_delta_valid */
if (avio_r8(pb) != 0)
goto invalid;
if (avio_r8(pb) != 1)
goto invalid;
avio_skip(pb, 1); /* other recs per frame */
if (avio_r8(pb) != 1)
goto invalid;
avio_skip(pb, 32); /* record_types */
st->nb_frames = avio_rl32(pb);
avpriv_set_pts_info(st, 64, 1, avio_rl16(pb));
avio_skip(pb, 58);
/* color cycling and palette data */
st->codecpar->extradata_size = 16*8 + 4*256;
st->codecpar->extradata = av_mallocz(st->codecpar->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!st->codecpar->extradata) {
return AVERROR(ENOMEM);
}
ret = avio_read(pb, st->codecpar->extradata, st->codecpar->extradata_size);
if (ret < 0)
return ret;
/* read page table */
ret = avio_seek(pb, anm->page_table_offset, SEEK_SET);
if (ret < 0)
return ret;
for (i = 0; i < MAX_PAGES; i++) {
Page *p = &anm->pt[i];
p->base_record = avio_rl16(pb);
p->nb_records = avio_rl16(pb);
p->size = avio_rl16(pb);
}
/* find page of first frame */
anm->page = find_record(anm, 0);
if (anm->page < 0) {
return anm->page;
}
anm->record = -1;
return 0;
invalid:
avpriv_request_sample(s, "Invalid header element");
return AVERROR_PATCHWELCOME;
}
static int fourxm_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
FourxmDemuxContext *fourxm = s->priv_data;
AVIOContext *pb = s->pb;
unsigned int fourcc_tag;
unsigned int size;
int ret = 0;
unsigned int track_number;
int packet_read = 0;
unsigned char header[8];
int audio_frame_count;
while (!packet_read) {
if ((ret = avio_read(s->pb, header, 8)) < 0)
return ret;
fourcc_tag = AV_RL32(&header[0]);
size = AV_RL32(&header[4]);
if (pb->eof_reached)
return AVERROR(EIO);
switch (fourcc_tag) {
case LIST_TAG:
/* this is a good time to bump the video pts */
fourxm->video_pts++;
/* skip the LIST-* tag and move on to the next fourcc */
avio_rl32(pb);
break;
case ifrm_TAG:
case pfrm_TAG:
case cfrm_TAG:
case ifr2_TAG:
case pfr2_TAG:
case cfr2_TAG:
/* allocate 8 more bytes than 'size' to account for fourcc
* and size */
if (size + 8 < size || av_new_packet(pkt, size + 8))
return AVERROR(EIO);
pkt->stream_index = fourxm->video_stream_index;
pkt->pts = fourxm->video_pts;
pkt->pos = avio_tell(s->pb);
memcpy(pkt->data, header, 8);
ret = avio_read(s->pb, &pkt->data[8], size);
if (ret < 0) {
av_free_packet(pkt);
} else
packet_read = 1;
break;
case snd__TAG:
track_number = avio_rl32(pb);
avio_skip(pb, 4);
size -= 8;
if (track_number < fourxm->track_count &&
fourxm->tracks[track_number].channels > 0) {
ret = av_get_packet(s->pb, pkt, size);
if (ret < 0)
return AVERROR(EIO);
pkt->stream_index =
fourxm->tracks[track_number].stream_index;
pkt->pts = fourxm->tracks[track_number].audio_pts;
packet_read = 1;
/* pts accounting */
audio_frame_count = size;
if (fourxm->tracks[track_number].adpcm)
audio_frame_count -= 2 * (fourxm->tracks[track_number].channels);
audio_frame_count /= fourxm->tracks[track_number].channels;
if (fourxm->tracks[track_number].adpcm) {
audio_frame_count *= 2;
} else
audio_frame_count /=
(fourxm->tracks[track_number].bits / 8);
fourxm->tracks[track_number].audio_pts += audio_frame_count;
} else {
avio_skip(pb, size);
}
break;
default:
avio_skip(pb, size);
break;
}
}
return ret;
}
static int idcin_read_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
IdcinDemuxContext *idcin = s->priv_data;
AVStream *st;
unsigned int width, height;
unsigned int sample_rate, bytes_per_sample, channels;
/* get the 5 header parameters */
width = avio_rl32(pb);
height = avio_rl32(pb);
sample_rate = avio_rl32(pb);
bytes_per_sample = avio_rl32(pb);
channels = avio_rl32(pb);
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 33, 1, IDCIN_FPS);
idcin->video_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_IDCIN;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = width;
st->codec->height = height;
/* load up the Huffman tables into extradata */
st->codec->extradata_size = HUFFMAN_TABLE_SIZE;
st->codec->extradata = av_malloc(HUFFMAN_TABLE_SIZE);
if (avio_read(pb, st->codec->extradata, HUFFMAN_TABLE_SIZE) !=
HUFFMAN_TABLE_SIZE)
return AVERROR(EIO);
/* if sample rate is 0, assume no audio */
if (sample_rate) {
idcin->audio_present = 1;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 33, 1, IDCIN_FPS);
idcin->audio_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_tag = 1;
st->codec->channels = channels;
st->codec->sample_rate = sample_rate;
st->codec->bits_per_coded_sample = bytes_per_sample * 8;
st->codec->bit_rate = sample_rate * bytes_per_sample * 8 * channels;
st->codec->block_align = bytes_per_sample * channels;
if (bytes_per_sample == 1)
st->codec->codec_id = AV_CODEC_ID_PCM_U8;
else
st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
if (sample_rate % 14 != 0) {
idcin->audio_chunk_size1 = (sample_rate / 14) *
bytes_per_sample * channels;
idcin->audio_chunk_size2 = (sample_rate / 14 + 1) *
bytes_per_sample * channels;
} else {
idcin->audio_chunk_size1 = idcin->audio_chunk_size2 =
(sample_rate / 14) * bytes_per_sample * channels;
}
idcin->current_audio_chunk = 0;
} else
idcin->audio_present = 1;
idcin->next_chunk_is_video = 1;
idcin->pts = 0;
return 0;
}
static int nsv_parse_NSVf_header(AVFormatContext *s)
{
NSVContext *nsv = s->priv_data;
AVIOContext *pb = s->pb;
unsigned int av_unused file_size;
unsigned int size;
int64_t duration;
int strings_size;
int table_entries;
int table_entries_used;
av_log(s, AV_LOG_TRACE, "%s()\n", __FUNCTION__);
nsv->state = NSV_UNSYNC; /* in case we fail */
size = avio_rl32(pb);
if (size < 28)
return -1;
nsv->NSVf_end = size;
//s->file_size = (uint32_t)avio_rl32(pb);
file_size = (uint32_t)avio_rl32(pb);
av_log(s, AV_LOG_TRACE, "NSV NSVf chunk_size %u\n", size);
av_log(s, AV_LOG_TRACE, "NSV NSVf file_size %u\n", file_size);
nsv->duration = duration = avio_rl32(pb); /* in ms */
av_log(s, AV_LOG_TRACE, "NSV NSVf duration %"PRId64" ms\n", duration);
// XXX: store it in AVStreams
strings_size = avio_rl32(pb);
table_entries = avio_rl32(pb);
table_entries_used = avio_rl32(pb);
av_log(s, AV_LOG_TRACE, "NSV NSVf info-strings size: %d, table entries: %d, bis %d\n",
strings_size, table_entries, table_entries_used);
if (pb->eof_reached)
return -1;
av_log(s, AV_LOG_TRACE, "NSV got header; filepos %"PRId64"\n", avio_tell(pb));
if (strings_size > 0) {
char *strings; /* last byte will be '\0' to play safe with str*() */
char *p, *endp;
char *token, *value;
char quote;
p = strings = av_mallocz((size_t)strings_size + 1);
if (!p)
return AVERROR(ENOMEM);
endp = strings + strings_size;
avio_read(pb, strings, strings_size);
while (p < endp) {
while (*p == ' ')
p++; /* strip out spaces */
if (p >= endp-2)
break;
token = p;
p = strchr(p, '=');
if (!p || p >= endp-2)
break;
*p++ = '\0';
quote = *p++;
value = p;
p = strchr(p, quote);
if (!p || p >= endp)
break;
*p++ = '\0';
av_log(s, AV_LOG_TRACE, "NSV NSVf INFO: %s='%s'\n", token, value);
av_dict_set(&s->metadata, token, value, 0);
}
av_free(strings);
}
if (pb->eof_reached)
return -1;
av_log(s, AV_LOG_TRACE, "NSV got infos; filepos %"PRId64"\n", avio_tell(pb));
if (table_entries_used > 0) {
int i;
nsv->index_entries = table_entries_used;
if((unsigned)table_entries_used >= UINT_MAX / sizeof(uint32_t))
return -1;
nsv->nsvs_file_offset = av_malloc((unsigned)table_entries_used * sizeof(uint32_t));
if (!nsv->nsvs_file_offset)
return AVERROR(ENOMEM);
for(i=0;i<table_entries_used;i++)
nsv->nsvs_file_offset[i] = avio_rl32(pb) + size;
if(table_entries > table_entries_used &&
avio_rl32(pb) == MKTAG('T','O','C','2')) {
nsv->nsvs_timestamps = av_malloc((unsigned)table_entries_used*sizeof(uint32_t));
if (!nsv->nsvs_timestamps)
return AVERROR(ENOMEM);
for(i=0;i<table_entries_used;i++) {
nsv->nsvs_timestamps[i] = avio_rl32(pb);
}
}
}
av_log(s, AV_LOG_TRACE, "NSV got index; filepos %"PRId64"\n", avio_tell(pb));
avio_seek(pb, nsv->base_offset + size, SEEK_SET); /* required for dumbdriving-271.nsv (2 extra bytes) */
if (pb->eof_reached)
return -1;
nsv->state = NSV_HAS_READ_NSVF;
return 0;
}
static int flac_read_header(AVFormatContext *s)
{
int ret, metadata_last=0, metadata_type, metadata_size, found_streaminfo=0;
uint8_t header[4];
uint8_t *buffer=NULL,*tmp=NULL;
AVStream *st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_FLAC;
st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
/* the parameters will be extracted from the compressed bitstream */
/* if fLaC marker is not found, assume there is no header */
if (avio_rl32(s->pb) != MKTAG('f','L','a','C')) {
avio_seek(s->pb, -4, SEEK_CUR);
return 0;
}
/* process metadata blocks */
while (!url_feof(s->pb) && !metadata_last) {
avio_read(s->pb, header, 4);
avpriv_flac_parse_block_header(header, &metadata_last, &metadata_type,
&metadata_size);
switch (metadata_type) {
/* allocate and read metadata block for supported types */
case FLAC_METADATA_TYPE_STREAMINFO:
case FLAC_METADATA_TYPE_CUESHEET:
case FLAC_METADATA_TYPE_PICTURE:
case FLAC_METADATA_TYPE_VORBIS_COMMENT:
buffer = av_mallocz(metadata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!buffer) {
return AVERROR(ENOMEM);
}
if (avio_read(s->pb, buffer, metadata_size) != metadata_size) {
RETURN_ERROR(AVERROR(EIO));
}
break;
/* skip metadata block for unsupported types */
default:
ret = avio_skip(s->pb, metadata_size);
if (ret < 0)
return ret;
}
if (metadata_type == FLAC_METADATA_TYPE_STREAMINFO) {
FLACStreaminfo si;
/* STREAMINFO can only occur once */
if (found_streaminfo) {
RETURN_ERROR(AVERROR_INVALIDDATA);
}
if (metadata_size != FLAC_STREAMINFO_SIZE) {
RETURN_ERROR(AVERROR_INVALIDDATA);
}
found_streaminfo = 1;
st->codec->extradata = av_malloc(metadata_size + 8 + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata) {
RETURN_ERROR(AVERROR(ENOMEM));
}
st->codec->extradata_size = metadata_size + 8;
AV_WL32(st->codec->extradata, MKTAG('f','L','a','C'));
memcpy(st->codec->extradata + 4, header, 4);
memcpy(st->codec->extradata + 8, buffer, metadata_size);
av_freep(&buffer);
/* get codec params from STREAMINFO header */
avpriv_flac_parse_streaminfo(st->codec, &si, st->codec->extradata + 8);
/* set time base and duration */
if (si.samplerate > 0) {
avpriv_set_pts_info(st, 64, 1, si.samplerate);
if (si.samples > 0)
st->duration = si.samples;
}
} else if (metadata_type == FLAC_METADATA_TYPE_CUESHEET) {
uint8_t isrc[13];
uint64_t start;
const uint8_t *offset;
int i, chapters, track, ti;
if (metadata_size < 431)
RETURN_ERROR(AVERROR_INVALIDDATA);
offset = buffer + 395;
chapters = bytestream_get_byte(&offset) - 1;
if (chapters <= 0)
RETURN_ERROR(AVERROR_INVALIDDATA);
for (i = 0; i < chapters; i++) {
if (offset + 36 - buffer > metadata_size)
RETURN_ERROR(AVERROR_INVALIDDATA);
start = bytestream_get_be64(&offset);
track = bytestream_get_byte(&offset);
bytestream_get_buffer(&offset, isrc, 12);
isrc[12] = 0;
offset += 14;
ti = bytestream_get_byte(&offset);
if (ti <= 0) RETURN_ERROR(AVERROR_INVALIDDATA);
offset += ti * 12;
avpriv_new_chapter(s, track, st->time_base, start, AV_NOPTS_VALUE, isrc);
}
av_freep(&buffer);
} else if (metadata_type == FLAC_METADATA_TYPE_PICTURE) {
ret = ff_flac_parse_picture(s, buffer, metadata_size);
av_freep(&buffer);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Error parsing attached picture.\n");
return ret;
}
} else {
/* STREAMINFO must be the first block */
if (!found_streaminfo) {
RETURN_ERROR(AVERROR_INVALIDDATA);
}
/* process supported blocks other than STREAMINFO */
if (metadata_type == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
/* append VorbisComment to extradata */
tmp = av_realloc(st->codec->extradata, st->codec->extradata_size + 4 + metadata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!tmp) {
RETURN_ERROR(AVERROR(ENOMEM));
}
st->codec->extradata = tmp;
tmp += st->codec->extradata_size;
memcpy(tmp, header, 4);
memcpy(tmp + 4, buffer, metadata_size);
st->codec->extradata_size = st->codec->extradata_size + 4 + metadata_size;
if (ff_vorbis_comment(s, &s->metadata, buffer, metadata_size)) {
av_log(s, AV_LOG_WARNING, "error parsing VorbisComment metadata\n");
}
}
av_freep(&buffer);
}
}
return 0;
fail:
av_free(buffer);
return ret;
}
/** Read magic cookie chunk */
static int read_kuki_chunk(AVFormatContext *s, int64_t size)
{
AVIOContext *pb = s->pb;
AVStream *st = s->streams[0];
if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
return -1;
if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
/* The magic cookie format for AAC is an mp4 esds atom.
The lavc AAC decoder requires the data from the codec specific
description as extradata input. */
int strt, skip;
strt = avio_tell(pb);
ff_mov_read_esds(s, pb);
skip = size - (avio_tell(pb) - strt);
if (skip < 0 || !st->codecpar->extradata ||
st->codecpar->codec_id != AV_CODEC_ID_AAC) {
av_log(s, AV_LOG_ERROR, "invalid AAC magic cookie\n");
return AVERROR_INVALIDDATA;
}
avio_skip(pb, skip);
} else if (st->codecpar->codec_id == AV_CODEC_ID_ALAC) {
#define ALAC_PREAMBLE 12
#define ALAC_HEADER 36
#define ALAC_NEW_KUKI 24
uint8_t preamble[12];
if (size < ALAC_NEW_KUKI) {
av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
avio_skip(pb, size);
return AVERROR_INVALIDDATA;
}
if (avio_read(pb, preamble, ALAC_PREAMBLE) != ALAC_PREAMBLE) {
av_log(s, AV_LOG_ERROR, "failed to read preamble\n");
return AVERROR_INVALIDDATA;
}
av_freep(&st->codecpar->extradata);
if (ff_alloc_extradata(st->codecpar, ALAC_HEADER))
return AVERROR(ENOMEM);
/* For the old style cookie, we skip 12 bytes, then read 36 bytes.
* The new style cookie only contains the last 24 bytes of what was
* 36 bytes in the old style cookie, so we fabricate the first 12 bytes
* in that case to maintain compatibility. */
if (!memcmp(&preamble[4], "frmaalac", 8)) {
if (size < ALAC_PREAMBLE + ALAC_HEADER) {
av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
av_freep(&st->codecpar->extradata);
return AVERROR_INVALIDDATA;
}
if (avio_read(pb, st->codecpar->extradata, ALAC_HEADER) != ALAC_HEADER) {
av_log(s, AV_LOG_ERROR, "failed to read kuki header\n");
av_freep(&st->codecpar->extradata);
return AVERROR_INVALIDDATA;
}
avio_skip(pb, size - ALAC_PREAMBLE - ALAC_HEADER);
} else {
AV_WB32(st->codecpar->extradata, 36);
memcpy(&st->codecpar->extradata[4], "alac", 4);
AV_WB32(&st->codecpar->extradata[8], 0);
memcpy(&st->codecpar->extradata[12], preamble, 12);
if (avio_read(pb, &st->codecpar->extradata[24], ALAC_NEW_KUKI - 12) != ALAC_NEW_KUKI - 12) {
av_log(s, AV_LOG_ERROR, "failed to read new kuki header\n");
av_freep(&st->codecpar->extradata);
return AVERROR_INVALIDDATA;
}
avio_skip(pb, size - ALAC_NEW_KUKI);
}
} else {
av_freep(&st->codecpar->extradata);
if (ff_get_extradata(st->codecpar, pb, size) < 0)
return AVERROR(ENOMEM);
}
return 0;
}
/* This function loads and processes a single chunk in an IP movie file.
* It returns the type of chunk that was processed. */
static int process_ipmovie_chunk(IPMVEContext *s, AVIOContext *pb,
AVPacket *pkt)
{
unsigned char chunk_preamble[CHUNK_PREAMBLE_SIZE];
int chunk_type;
int chunk_size;
unsigned char opcode_preamble[OPCODE_PREAMBLE_SIZE];
unsigned char opcode_type;
unsigned char opcode_version;
int opcode_size;
unsigned char scratch[1024];
int i, j;
int first_color, last_color;
int audio_flags;
unsigned char r, g, b;
unsigned int width, height;
/* see if there are any pending packets */
chunk_type = load_ipmovie_packet(s, pb, pkt);
if (chunk_type != CHUNK_DONE)
return chunk_type;
/* read the next chunk, wherever the file happens to be pointing */
if (avio_feof(pb))
return CHUNK_EOF;
if (avio_read(pb, chunk_preamble, CHUNK_PREAMBLE_SIZE) !=
CHUNK_PREAMBLE_SIZE)
return CHUNK_BAD;
chunk_size = AV_RL16(&chunk_preamble[0]);
chunk_type = AV_RL16(&chunk_preamble[2]);
av_log(NULL, AV_LOG_TRACE, "chunk type 0x%04X, 0x%04X bytes: ", chunk_type, chunk_size);
switch (chunk_type) {
case CHUNK_INIT_AUDIO:
av_log(NULL, AV_LOG_TRACE, "initialize audio\n");
break;
case CHUNK_AUDIO_ONLY:
av_log(NULL, AV_LOG_TRACE, "audio only\n");
break;
case CHUNK_INIT_VIDEO:
av_log(NULL, AV_LOG_TRACE, "initialize video\n");
break;
case CHUNK_VIDEO:
av_log(NULL, AV_LOG_TRACE, "video (and audio)\n");
break;
case CHUNK_SHUTDOWN:
av_log(NULL, AV_LOG_TRACE, "shutdown\n");
break;
case CHUNK_END:
av_log(NULL, AV_LOG_TRACE, "end\n");
break;
default:
av_log(NULL, AV_LOG_TRACE, "invalid chunk\n");
chunk_type = CHUNK_BAD;
break;
}
while ((chunk_size > 0) && (chunk_type != CHUNK_BAD)) {
/* read the next chunk, wherever the file happens to be pointing */
if (avio_feof(pb)) {
chunk_type = CHUNK_EOF;
break;
}
if (avio_read(pb, opcode_preamble, CHUNK_PREAMBLE_SIZE) !=
CHUNK_PREAMBLE_SIZE) {
chunk_type = CHUNK_BAD;
break;
}
opcode_size = AV_RL16(&opcode_preamble[0]);
opcode_type = opcode_preamble[2];
opcode_version = opcode_preamble[3];
chunk_size -= OPCODE_PREAMBLE_SIZE;
chunk_size -= opcode_size;
if (chunk_size < 0) {
av_log(NULL, AV_LOG_TRACE, "chunk_size countdown just went negative\n");
chunk_type = CHUNK_BAD;
break;
}
av_log(NULL, AV_LOG_TRACE, " opcode type %02X, version %d, 0x%04X bytes: ",
opcode_type, opcode_version, opcode_size);
switch (opcode_type) {
case OPCODE_END_OF_STREAM:
av_log(NULL, AV_LOG_TRACE, "end of stream\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_END_OF_CHUNK:
av_log(NULL, AV_LOG_TRACE, "end of chunk\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_CREATE_TIMER:
av_log(NULL, AV_LOG_TRACE, "create timer\n");
if ((opcode_version > 0) || (opcode_size != 6)) {
av_log(NULL, AV_LOG_TRACE, "bad create_timer opcode\n");
chunk_type = CHUNK_BAD;
break;
}
if (avio_read(pb, scratch, opcode_size) !=
opcode_size) {
chunk_type = CHUNK_BAD;
break;
}
s->frame_pts_inc = ((uint64_t)AV_RL32(&scratch[0])) * AV_RL16(&scratch[4]);
av_log(NULL, AV_LOG_TRACE, " %.2f frames/second (timer div = %d, subdiv = %d)\n",
1000000.0 / s->frame_pts_inc, AV_RL32(&scratch[0]),
AV_RL16(&scratch[4]));
break;
case OPCODE_INIT_AUDIO_BUFFERS:
av_log(NULL, AV_LOG_TRACE, "initialize audio buffers\n");
if (opcode_version > 1 || opcode_size > 10 || opcode_size < 6) {
av_log(NULL, AV_LOG_TRACE, "bad init_audio_buffers opcode\n");
chunk_type = CHUNK_BAD;
break;
}
if (avio_read(pb, scratch, opcode_size) !=
opcode_size) {
chunk_type = CHUNK_BAD;
break;
}
s->audio_sample_rate = AV_RL16(&scratch[4]);
audio_flags = AV_RL16(&scratch[2]);
/* bit 0 of the flags: 0 = mono, 1 = stereo */
s->audio_channels = (audio_flags & 1) + 1;
/* bit 1 of the flags: 0 = 8 bit, 1 = 16 bit */
s->audio_bits = (((audio_flags >> 1) & 1) + 1) * 8;
/* bit 2 indicates compressed audio in version 1 opcode */
if ((opcode_version == 1) && (audio_flags & 0x4))
s->audio_type = AV_CODEC_ID_INTERPLAY_DPCM;
else if (s->audio_bits == 16)
s->audio_type = AV_CODEC_ID_PCM_S16LE;
else
s->audio_type = AV_CODEC_ID_PCM_U8;
av_log(NULL, AV_LOG_TRACE, "audio: %d bits, %d Hz, %s, %s format\n",
s->audio_bits, s->audio_sample_rate,
(s->audio_channels == 2) ? "stereo" : "mono",
(s->audio_type == AV_CODEC_ID_INTERPLAY_DPCM) ?
"Interplay audio" : "PCM");
break;
case OPCODE_START_STOP_AUDIO:
av_log(NULL, AV_LOG_TRACE, "start/stop audio\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_INIT_VIDEO_BUFFERS:
av_log(NULL, AV_LOG_TRACE, "initialize video buffers\n");
if ((opcode_version > 2) || (opcode_size > 8) || opcode_size < 4
|| opcode_version == 2 && opcode_size < 8
) {
av_log(NULL, AV_LOG_TRACE, "bad init_video_buffers opcode\n");
chunk_type = CHUNK_BAD;
break;
}
if (avio_read(pb, scratch, opcode_size) !=
opcode_size) {
chunk_type = CHUNK_BAD;
break;
}
width = AV_RL16(&scratch[0]) * 8;
height = AV_RL16(&scratch[2]) * 8;
if (width != s->video_width) {
s->video_width = width;
s->changed++;
}
if (height != s->video_height) {
s->video_height = height;
s->changed++;
}
if (opcode_version < 2 || !AV_RL16(&scratch[6])) {
s->video_bpp = 8;
} else {
s->video_bpp = 16;
}
av_log(NULL, AV_LOG_TRACE, "video resolution: %d x %d\n",
s->video_width, s->video_height);
break;
case OPCODE_UNKNOWN_06:
case OPCODE_UNKNOWN_0E:
case OPCODE_UNKNOWN_10:
case OPCODE_UNKNOWN_12:
case OPCODE_UNKNOWN_13:
case OPCODE_UNKNOWN_14:
case OPCODE_UNKNOWN_15:
av_log(NULL, AV_LOG_TRACE, "unknown (but documented) opcode %02X\n", opcode_type);
avio_skip(pb, opcode_size);
break;
case OPCODE_SEND_BUFFER:
av_log(NULL, AV_LOG_TRACE, "send buffer\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_AUDIO_FRAME:
av_log(NULL, AV_LOG_TRACE, "audio frame\n");
/* log position and move on for now */
s->audio_chunk_offset = avio_tell(pb);
s->audio_chunk_size = opcode_size;
avio_skip(pb, opcode_size);
break;
case OPCODE_SILENCE_FRAME:
av_log(NULL, AV_LOG_TRACE, "silence frame\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_INIT_VIDEO_MODE:
av_log(NULL, AV_LOG_TRACE, "initialize video mode\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_CREATE_GRADIENT:
av_log(NULL, AV_LOG_TRACE, "create gradient\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_SET_PALETTE:
av_log(NULL, AV_LOG_TRACE, "set palette\n");
/* check for the logical maximum palette size
* (3 * 256 + 4 bytes) */
if (opcode_size > 0x304 || opcode_size < 4) {
av_log(NULL, AV_LOG_TRACE, "demux_ipmovie: set_palette opcode with invalid size\n");
chunk_type = CHUNK_BAD;
break;
}
if (avio_read(pb, scratch, opcode_size) != opcode_size) {
chunk_type = CHUNK_BAD;
break;
}
/* load the palette into internal data structure */
first_color = AV_RL16(&scratch[0]);
last_color = first_color + AV_RL16(&scratch[2]) - 1;
/* sanity check (since they are 16 bit values) */
if ( (first_color > 0xFF) || (last_color > 0xFF)
|| (last_color - first_color + 1)*3 + 4 > opcode_size) {
av_log(NULL, AV_LOG_TRACE, "demux_ipmovie: set_palette indexes out of range (%d -> %d)\n",
first_color, last_color);
chunk_type = CHUNK_BAD;
break;
}
j = 4; /* offset of first palette data */
for (i = first_color; i <= last_color; i++) {
/* the palette is stored as a 6-bit VGA palette, thus each
* component is shifted up to a 8-bit range */
r = scratch[j++] * 4;
g = scratch[j++] * 4;
b = scratch[j++] * 4;
s->palette[i] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
s->palette[i] |= s->palette[i] >> 6 & 0x30303;
}
s->has_palette = 1;
break;
case OPCODE_SET_PALETTE_COMPRESSED:
av_log(NULL, AV_LOG_TRACE, "set palette compressed\n");
avio_skip(pb, opcode_size);
break;
case OPCODE_SET_DECODING_MAP:
av_log(NULL, AV_LOG_TRACE, "set decoding map\n");
/* log position and move on for now */
s->decode_map_chunk_offset = avio_tell(pb);
s->decode_map_chunk_size = opcode_size;
avio_skip(pb, opcode_size);
break;
case OPCODE_VIDEO_DATA:
av_log(NULL, AV_LOG_TRACE, "set video data\n");
/* log position and move on for now */
s->video_chunk_offset = avio_tell(pb);
s->video_chunk_size = opcode_size;
avio_skip(pb, opcode_size);
break;
default:
av_log(NULL, AV_LOG_TRACE, "*** unknown opcode type\n");
chunk_type = CHUNK_BAD;
break;
}
}
if (s->avf->nb_streams == 1 && s->audio_type)
init_audio(s->avf);
/* make a note of where the stream is sitting */
s->next_chunk_offset = avio_tell(pb);
/* dispatch the first of any pending packets */
if ((chunk_type == CHUNK_VIDEO) || (chunk_type == CHUNK_AUDIO_ONLY))
chunk_type = load_ipmovie_packet(s, pb, pkt);
return chunk_type;
}
static int film_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
FilmDemuxContext *film = s->priv_data;
AVIOContext *pb = s->pb;
film_sample *sample;
int ret = 0;
int i;
int left, right;
if (film->current_sample >= film->sample_count)
return AVERROR(EIO);
sample = &film->sample_table[film->current_sample];
/* position the stream (will probably be there anyway) */
avio_seek(pb, sample->sample_offset, SEEK_SET);
/* do a special song and dance when loading FILM Cinepak chunks */
if ((sample->stream == film->video_stream_index) &&
(film->video_type == CODEC_ID_CINEPAK)) {
pkt->pos= avio_tell(pb);
if (av_new_packet(pkt, sample->sample_size))
return AVERROR(ENOMEM);
avio_read(pb, pkt->data, sample->sample_size);
} else if ((sample->stream == film->audio_stream_index) &&
(film->audio_channels == 2) &&
(film->audio_type != CODEC_ID_ADPCM_ADX)) {
/* stereo PCM needs to be interleaved */
if (av_new_packet(pkt, sample->sample_size))
return AVERROR(ENOMEM);
/* make sure the interleave buffer is large enough */
if (sample->sample_size > film->stereo_buffer_size) {
av_free(film->stereo_buffer);
film->stereo_buffer_size = sample->sample_size;
film->stereo_buffer = av_malloc(film->stereo_buffer_size);
if (!film->stereo_buffer) {
film->stereo_buffer_size = 0;
return AVERROR(ENOMEM);
}
}
pkt->pos= avio_tell(pb);
ret = avio_read(pb, film->stereo_buffer, sample->sample_size);
if (ret != sample->sample_size)
ret = AVERROR(EIO);
left = 0;
right = sample->sample_size / 2;
for (i = 0; i < sample->sample_size; ) {
if (film->audio_bits == 8) {
pkt->data[i++] = film->stereo_buffer[left++];
pkt->data[i++] = film->stereo_buffer[right++];
} else {
pkt->data[i++] = film->stereo_buffer[left++];
pkt->data[i++] = film->stereo_buffer[left++];
pkt->data[i++] = film->stereo_buffer[right++];
pkt->data[i++] = film->stereo_buffer[right++];
}
}
} else {
ret= av_get_packet(pb, pkt, sample->sample_size);
if (ret != sample->sample_size)
ret = AVERROR(EIO);
}
pkt->stream_index = sample->stream;
pkt->pts = sample->pts;
film->current_sample++;
return ret;
}
static int film_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
FilmDemuxContext *film = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st;
unsigned char scratch[256];
int i;
unsigned int data_offset;
unsigned int audio_frame_counter;
film->sample_table = NULL;
film->stereo_buffer = NULL;
film->stereo_buffer_size = 0;
/* load the main FILM header */
if (avio_read(pb, scratch, 16) != 16)
return AVERROR(EIO);
data_offset = AV_RB32(&scratch[4]);
film->version = AV_RB32(&scratch[8]);
/* load the FDSC chunk */
if (film->version == 0) {
/* special case for Lemmings .film files; 20-byte header */
if (avio_read(pb, scratch, 20) != 20)
return AVERROR(EIO);
/* make some assumptions about the audio parameters */
film->audio_type = CODEC_ID_PCM_S8;
film->audio_samplerate = 22050;
film->audio_channels = 1;
film->audio_bits = 8;
} else {
/* normal Saturn .cpk files; 32-byte header */
if (avio_read(pb, scratch, 32) != 32)
return AVERROR(EIO);
film->audio_samplerate = AV_RB16(&scratch[24]);
film->audio_channels = scratch[21];
film->audio_bits = scratch[22];
if (scratch[23] == 2)
film->audio_type = CODEC_ID_ADPCM_ADX;
else if (film->audio_channels > 0) {
if (film->audio_bits == 8)
film->audio_type = CODEC_ID_PCM_S8;
else if (film->audio_bits == 16)
film->audio_type = CODEC_ID_PCM_S16BE;
else
film->audio_type = CODEC_ID_NONE;
} else
film->audio_type = CODEC_ID_NONE;
}
if (AV_RB32(&scratch[0]) != FDSC_TAG)
return AVERROR_INVALIDDATA;
if (AV_RB32(&scratch[8]) == CVID_TAG) {
film->video_type = CODEC_ID_CINEPAK;
} else if (AV_RB32(&scratch[8]) == RAW_TAG) {
film->video_type = CODEC_ID_RAWVIDEO;
} else {
film->video_type = CODEC_ID_NONE;
}
/* initialize the decoder streams */
if (film->video_type) {
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
film->video_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = film->video_type;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = AV_RB32(&scratch[16]);
st->codec->height = AV_RB32(&scratch[12]);
if (film->video_type == CODEC_ID_RAWVIDEO) {
if (scratch[20] == 24) {
st->codec->pix_fmt = PIX_FMT_RGB24;
} else {
av_log(s, AV_LOG_ERROR, "raw video is using unhandled %dbpp\n", scratch[20]);
return -1;
}
}
}
if (film->audio_type) {
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
film->audio_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = film->audio_type;
st->codec->codec_tag = 1;
st->codec->channels = film->audio_channels;
st->codec->sample_rate = film->audio_samplerate;
if (film->audio_type == CODEC_ID_ADPCM_ADX) {
st->codec->bits_per_coded_sample = 18 * 8 / 32;
st->codec->block_align = st->codec->channels * 18;
} else {
st->codec->bits_per_coded_sample = film->audio_bits;
st->codec->block_align = st->codec->channels *
st->codec->bits_per_coded_sample / 8;
}
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample;
}
/* load the sample table */
if (avio_read(pb, scratch, 16) != 16)
return AVERROR(EIO);
if (AV_RB32(&scratch[0]) != STAB_TAG)
return AVERROR_INVALIDDATA;
film->base_clock = AV_RB32(&scratch[8]);
film->sample_count = AV_RB32(&scratch[12]);
if(film->sample_count >= UINT_MAX / sizeof(film_sample))
return -1;
film->sample_table = av_malloc(film->sample_count * sizeof(film_sample));
if (!film->sample_table)
return AVERROR(ENOMEM);
for(i=0; i<s->nb_streams; i++)
av_set_pts_info(s->streams[i], 33, 1, film->base_clock);
audio_frame_counter = 0;
for (i = 0; i < film->sample_count; i++) {
/* load the next sample record and transfer it to an internal struct */
if (avio_read(pb, scratch, 16) != 16) {
av_free(film->sample_table);
return AVERROR(EIO);
}
film->sample_table[i].sample_offset =
data_offset + AV_RB32(&scratch[0]);
film->sample_table[i].sample_size = AV_RB32(&scratch[4]);
if (AV_RB32(&scratch[8]) == 0xFFFFFFFF) {
film->sample_table[i].stream = film->audio_stream_index;
film->sample_table[i].pts = audio_frame_counter;
film->sample_table[i].pts *= film->base_clock;
film->sample_table[i].pts /= film->audio_samplerate;
if (film->audio_type == CODEC_ID_ADPCM_ADX)
audio_frame_counter += (film->sample_table[i].sample_size * 32 /
(18 * film->audio_channels));
else if (film->audio_type != CODEC_ID_NONE)
audio_frame_counter += (film->sample_table[i].sample_size /
(film->audio_channels * film->audio_bits / 8));
} else {
film->sample_table[i].stream = film->video_stream_index;
film->sample_table[i].pts = AV_RB32(&scratch[8]) & 0x7FFFFFFF;
film->sample_table[i].keyframe = (scratch[8] & 0x80) ? 0 : 1;
}
}
film->current_sample = 0;
return 0;
}
static int yop_read_packet(AVFormatContext *s, AVPacket *pkt)
{
YopDecContext *yop = s->priv_data;
AVIOContext *pb = s->pb;
int ret;
int actual_video_data_size = yop->frame_size -
yop->audio_block_length - yop->palette_size;
yop->video_packet.stream_index = 1;
if (yop->video_packet.data) {
*pkt = yop->video_packet;
yop->video_packet.data = NULL;
yop->video_packet.buf = NULL;
#if FF_API_DESTRUCT_PACKET
FF_DISABLE_DEPRECATION_WARNINGS
yop->video_packet.destruct = NULL;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
yop->video_packet.size = 0;
pkt->data[0] = yop->odd_frame;
pkt->flags |= AV_PKT_FLAG_KEY;
yop->odd_frame ^= 1;
return pkt->size;
}
ret = av_new_packet(&yop->video_packet,
yop->frame_size - yop->audio_block_length);
if (ret < 0)
return ret;
yop->video_packet.pos = avio_tell(pb);
ret = avio_read(pb, yop->video_packet.data, yop->palette_size);
if (ret < 0) {
goto err_out;
}else if (ret < yop->palette_size) {
ret = AVERROR_EOF;
goto err_out;
}
ret = av_get_packet(pb, pkt, 920);
if (ret < 0)
goto err_out;
// Set position to the start of the frame
pkt->pos = yop->video_packet.pos;
avio_skip(pb, yop->audio_block_length - ret);
ret = avio_read(pb, yop->video_packet.data + yop->palette_size,
actual_video_data_size);
if (ret < 0)
goto err_out;
else if (ret < actual_video_data_size)
av_shrink_packet(&yop->video_packet, yop->palette_size + ret);
// Arbitrarily return the audio data first
return yop->audio_block_length;
err_out:
av_free_packet(&yop->video_packet);
return ret;
}
static int yop_read_header(AVFormatContext *s)
{
YopDecContext *yop = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecContext *audio_dec, *video_dec;
AVStream *audio_stream, *video_stream;
int frame_rate, ret;
audio_stream = avformat_new_stream(s, NULL);
video_stream = avformat_new_stream(s, NULL);
if (!audio_stream || !video_stream)
return AVERROR(ENOMEM);
// Extra data that will be passed to the decoder
if (ff_alloc_extradata(video_stream->codec, 8))
return AVERROR(ENOMEM);
// Audio
audio_dec = audio_stream->codec;
audio_dec->codec_type = AVMEDIA_TYPE_AUDIO;
audio_dec->codec_id = AV_CODEC_ID_ADPCM_IMA_APC;
audio_dec->channels = 1;
audio_dec->channel_layout = AV_CH_LAYOUT_MONO;
audio_dec->sample_rate = 22050;
// Video
video_dec = video_stream->codec;
video_dec->codec_type = AVMEDIA_TYPE_VIDEO;
video_dec->codec_id = AV_CODEC_ID_YOP;
avio_skip(pb, 6);
frame_rate = avio_r8(pb);
yop->frame_size = avio_r8(pb) * 2048;
video_dec->width = avio_rl16(pb);
video_dec->height = avio_rl16(pb);
video_stream->sample_aspect_ratio = (AVRational){1, 2};
ret = avio_read(pb, video_dec->extradata, 8);
if (ret < 8)
return ret < 0 ? ret : AVERROR_EOF;
yop->palette_size = video_dec->extradata[0] * 3 + 4;
yop->audio_block_length = AV_RL16(video_dec->extradata + 6);
video_dec->bit_rate = 8 * (yop->frame_size - yop->audio_block_length) * frame_rate;
// 1840 samples per frame, 1 nibble per sample; hence 1840/2 = 920
if (yop->audio_block_length < 920 ||
yop->audio_block_length + yop->palette_size >= yop->frame_size) {
av_log(s, AV_LOG_ERROR, "YOP has invalid header\n");
return AVERROR_INVALIDDATA;
}
avio_seek(pb, 2048, SEEK_SET);
avpriv_set_pts_info(video_stream, 32, 1, frame_rate);
return 0;
}
static int ipmovie_read_header(AVFormatContext *s)
{
IPMVEContext *ipmovie = s->priv_data;
AVIOContext *pb = s->pb;
AVPacket pkt;
AVStream *st;
unsigned char chunk_preamble[CHUNK_PREAMBLE_SIZE];
int chunk_type;
uint8_t signature_buffer[sizeof(signature)];
avio_read(pb, signature_buffer, sizeof(signature_buffer));
while (memcmp(signature_buffer, signature, sizeof(signature))) {
memmove(signature_buffer, signature_buffer + 1, sizeof(signature_buffer) - 1);
signature_buffer[sizeof(signature_buffer) - 1] = avio_r8(pb);
if (pb->eof_reached)
return AVERROR_EOF;
}
/* initialize private context members */
ipmovie->video_pts = ipmovie->audio_frame_count = 0;
ipmovie->audio_chunk_offset = ipmovie->video_chunk_offset =
ipmovie->decode_map_chunk_offset = 0;
/* on the first read, this will position the stream at the first chunk */
ipmovie->next_chunk_offset = avio_tell(pb) + 4;
/* process the first chunk which should be CHUNK_INIT_VIDEO */
if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_VIDEO)
return AVERROR_INVALIDDATA;
/* peek ahead to the next chunk-- if it is an init audio chunk, process
* it; if it is the first video chunk, this is a silent file */
if (avio_read(pb, chunk_preamble, CHUNK_PREAMBLE_SIZE) !=
CHUNK_PREAMBLE_SIZE)
return AVERROR(EIO);
chunk_type = AV_RL16(&chunk_preamble[2]);
avio_seek(pb, -CHUNK_PREAMBLE_SIZE, SEEK_CUR);
if (chunk_type == CHUNK_VIDEO)
ipmovie->audio_type = AV_CODEC_ID_NONE; /* no audio */
else if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_AUDIO)
return AVERROR_INVALIDDATA;
/* initialize the stream decoders */
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 63, 1, 1000000);
ipmovie->video_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_INTERPLAY_VIDEO;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = ipmovie->video_width;
st->codec->height = ipmovie->video_height;
st->codec->bits_per_coded_sample = ipmovie->video_bpp;
if (ipmovie->audio_type) {
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 32, 1, ipmovie->audio_sample_rate);
ipmovie->audio_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = ipmovie->audio_type;
st->codec->codec_tag = 0; /* no tag */
st->codec->channels = ipmovie->audio_channels;
st->codec->channel_layout = st->codec->channels == 1 ? AV_CH_LAYOUT_MONO :
AV_CH_LAYOUT_STEREO;
st->codec->sample_rate = ipmovie->audio_sample_rate;
st->codec->bits_per_coded_sample = ipmovie->audio_bits;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample;
if (st->codec->codec_id == AV_CODEC_ID_INTERPLAY_DPCM)
st->codec->bit_rate /= 2;
st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
}
return 0;
}
static int sox_read_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
unsigned header_size, comment_size;
double sample_rate, sample_rate_frac;
AVStream *st;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
if (avio_rl32(pb) == SOX_TAG) {
st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
header_size = avio_rl32(pb);
avio_skip(pb, 8); /* sample count */
sample_rate = av_int2double(avio_rl64(pb));
st->codec->channels = avio_rl32(pb);
comment_size = avio_rl32(pb);
} else {
st->codec->codec_id = AV_CODEC_ID_PCM_S32BE;
header_size = avio_rb32(pb);
avio_skip(pb, 8); /* sample count */
sample_rate = av_int2double(avio_rb64(pb));
st->codec->channels = avio_rb32(pb);
comment_size = avio_rb32(pb);
}
if (comment_size > 0xFFFFFFFFU - SOX_FIXED_HDR - 4U) {
av_log(s, AV_LOG_ERROR, "invalid comment size (%u)\n", comment_size);
return AVERROR_INVALIDDATA;
}
if (sample_rate <= 0 || sample_rate > INT_MAX) {
av_log(s, AV_LOG_ERROR, "invalid sample rate (%f)\n", sample_rate);
return AVERROR_INVALIDDATA;
}
sample_rate_frac = sample_rate - floor(sample_rate);
if (sample_rate_frac)
av_log(s, AV_LOG_WARNING,
"truncating fractional part of sample rate (%f)\n",
sample_rate_frac);
if ((header_size + 4) & 7 || header_size < SOX_FIXED_HDR + comment_size
|| st->codec->channels > 65535) /* Reserve top 16 bits */ {
av_log(s, AV_LOG_ERROR, "invalid header\n");
return AVERROR_INVALIDDATA;
}
if (comment_size && comment_size < UINT_MAX) {
char *comment = av_malloc(comment_size+1);
if(!comment)
return AVERROR(ENOMEM);
if (avio_read(pb, comment, comment_size) != comment_size) {
av_freep(&comment);
return AVERROR(EIO);
}
comment[comment_size] = 0;
av_dict_set(&s->metadata, "comment", comment,
AV_DICT_DONT_STRDUP_VAL);
}
avio_skip(pb, header_size - SOX_FIXED_HDR - comment_size);
st->codec->sample_rate = sample_rate;
st->codec->bits_per_coded_sample = 32;
st->codec->bit_rate = st->codec->sample_rate *
st->codec->bits_per_coded_sample *
st->codec->channels;
st->codec->block_align = st->codec->bits_per_coded_sample *
st->codec->channels / 8;
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
return 0;
}
int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
const char *filename, void *logctx,
unsigned int offset, unsigned int max_probe_size)
{
AVProbeData pd = { filename ? filename : "" };
uint8_t *buf = NULL;
int ret = 0, probe_size, buf_offset = 0;
int score = 0;
int ret2;
if (!max_probe_size)
max_probe_size = PROBE_BUF_MAX;
else if (max_probe_size < PROBE_BUF_MIN) {
av_log(logctx, AV_LOG_ERROR,
"Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);
return AVERROR(EINVAL);
}
if (offset >= max_probe_size)
return AVERROR(EINVAL);
if (pb->av_class) {
uint8_t *mime_type_opt = NULL;
char *semi;
av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type_opt);
pd.mime_type = (const char *)mime_type_opt;
semi = pd.mime_type ? strchr(pd.mime_type, ';') : NULL;
if (semi) {
*semi = '\0';
}
}
#if 0
if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
if (!av_strcasecmp(mime_type, "audio/aacp")) {
*fmt = av_find_input_format("aac");
}
av_freep(&mime_type);
}
#endif
for (probe_size = PROBE_BUF_MIN; probe_size <= max_probe_size && !*fmt;
probe_size = FFMIN(probe_size << 1,
FFMAX(max_probe_size, probe_size + 1))) {
score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;
/* Read probe data. */
if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
goto fail;
if ((ret = avio_read(pb, buf + buf_offset,
probe_size - buf_offset)) < 0) {
/* Fail if error was not end of file, otherwise, lower score. */
if (ret != AVERROR_EOF)
goto fail;
score = 0;
ret = 0; /* error was end of file, nothing read */
}
buf_offset += ret;
if (buf_offset < offset)
continue;
pd.buf_size = buf_offset - offset;
pd.buf = &buf[offset];
memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);
/* Guess file format. */
*fmt = av_probe_input_format2(&pd, 1, &score);
if (*fmt) {
/* This can only be true in the last iteration. */
if (score <= AVPROBE_SCORE_RETRY) {
av_log(logctx, AV_LOG_WARNING,
"Format %s detected only with low score of %d, "
"misdetection possible!\n", (*fmt)->name, score);
} else
av_log(logctx, AV_LOG_DEBUG,
"Format %s probed with size=%d and score=%d\n",
(*fmt)->name, probe_size, score);
#if 0
FILE *f = fopen("probestat.tmp", "ab");
fprintf(f, "probe_size:%d format:%s score:%d filename:%s\n", probe_size, (*fmt)->name, score, filename);
fclose(f);
#endif
}
}
if (!*fmt)
ret = AVERROR_INVALIDDATA;
fail:
/* Rewind. Reuse probe buffer to avoid seeking. */
ret2 = ffio_rewind_with_probe_data(pb, &buf, buf_offset);
if (ret >= 0)
ret = ret2;
av_freep(&pd.mime_type);
return ret < 0 ? ret : score;
}
/* Returns the number of sound data frames or negative on error */
static unsigned int get_aiff_header(AVIOContext *pb, AVCodecContext *codec,
int size, unsigned version)
{
AVExtFloat ext;
double sample_rate;
unsigned int num_frames;
if (size & 1)
size++;
codec->codec_type = AVMEDIA_TYPE_AUDIO;
codec->channels = avio_rb16(pb);
num_frames = avio_rb32(pb);
codec->bits_per_coded_sample = avio_rb16(pb);
avio_read(pb, (uint8_t*)&ext, sizeof(ext));/* Sample rate is in */
sample_rate = av_ext2dbl(ext); /* 80 bits BE IEEE extended float */
codec->sample_rate = sample_rate;
size -= 18;
/* Got an AIFF-C? */
if (version == AIFF_C_VERSION1) {
codec->codec_tag = avio_rl32(pb);
codec->codec_id = ff_codec_get_id(ff_codec_aiff_tags, codec->codec_tag);
switch (codec->codec_id) {
case CODEC_ID_PCM_S16BE:
codec->codec_id = aiff_codec_get_id(codec->bits_per_coded_sample);
codec->bits_per_coded_sample = av_get_bits_per_sample(codec->codec_id);
break;
case CODEC_ID_ADPCM_IMA_QT:
codec->block_align = 34*codec->channels;
codec->frame_size = 64;
break;
case CODEC_ID_MACE3:
codec->block_align = 2*codec->channels;
codec->frame_size = 6;
break;
case CODEC_ID_MACE6:
codec->block_align = 1*codec->channels;
codec->frame_size = 6;
break;
case CODEC_ID_GSM:
codec->block_align = 33;
codec->frame_size = 160;
break;
case CODEC_ID_QCELP:
codec->block_align = 35;
codec->frame_size= 160;
break;
default:
break;
}
size -= 4;
} else {
/* Need the codec type */
codec->codec_id = aiff_codec_get_id(codec->bits_per_coded_sample);
codec->bits_per_coded_sample = av_get_bits_per_sample(codec->codec_id);
}
/* Block align needs to be computed in all cases, as the definition
* is specific to applications -> here we use the WAVE format definition */
if (!codec->block_align)
codec->block_align = (codec->bits_per_coded_sample * codec->channels) >> 3;
codec->bit_rate = (codec->frame_size ? codec->sample_rate/codec->frame_size :
codec->sample_rate) * (codec->block_align << 3);
/* Chunk is over */
if (size)
avio_skip(pb, size);
return num_frames;
}
static int ffm_read_header(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
AVStream *st;
AVIOContext *pb = s->pb;
AVCodecContext *codec;
int i, nb_streams;
uint32_t tag;
/* header */
tag = avio_rl32(pb);
if (tag != MKTAG('F', 'F', 'M', '1'))
goto fail;
ffm->packet_size = avio_rb32(pb);
if (ffm->packet_size != FFM_PACKET_SIZE)
goto fail;
ffm->write_index = avio_rb64(pb);
/* get also filesize */
if (pb->seekable) {
ffm->file_size = avio_size(pb);
if (ffm->write_index && 0)
adjust_write_index(s);
} else {
ffm->file_size = (UINT64_C(1) << 63) - 1;
}
nb_streams = avio_rb32(pb);
avio_rb32(pb); /* total bitrate */
/* read each stream */
for(i=0;i<nb_streams;i++) {
char rc_eq_buf[128];
st = avformat_new_stream(s, NULL);
if (!st)
goto fail;
avpriv_set_pts_info(st, 64, 1, 1000000);
codec = st->codec;
/* generic info */
codec->codec_id = avio_rb32(pb);
codec->codec_type = avio_r8(pb); /* codec_type */
codec->bit_rate = avio_rb32(pb);
codec->flags = avio_rb32(pb);
codec->flags2 = avio_rb32(pb);
codec->debug = avio_rb32(pb);
/* specific info */
switch(codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
codec->time_base.num = avio_rb32(pb);
codec->time_base.den = avio_rb32(pb);
codec->width = avio_rb16(pb);
codec->height = avio_rb16(pb);
codec->gop_size = avio_rb16(pb);
codec->pix_fmt = avio_rb32(pb);
codec->qmin = avio_r8(pb);
codec->qmax = avio_r8(pb);
codec->max_qdiff = avio_r8(pb);
codec->qcompress = avio_rb16(pb) / 10000.0;
codec->qblur = avio_rb16(pb) / 10000.0;
codec->bit_rate_tolerance = avio_rb32(pb);
avio_get_str(pb, INT_MAX, rc_eq_buf, sizeof(rc_eq_buf));
codec->rc_eq = av_strdup(rc_eq_buf);
codec->rc_max_rate = avio_rb32(pb);
codec->rc_min_rate = avio_rb32(pb);
codec->rc_buffer_size = avio_rb32(pb);
codec->i_quant_factor = av_int2double(avio_rb64(pb));
codec->b_quant_factor = av_int2double(avio_rb64(pb));
codec->i_quant_offset = av_int2double(avio_rb64(pb));
codec->b_quant_offset = av_int2double(avio_rb64(pb));
codec->dct_algo = avio_rb32(pb);
codec->strict_std_compliance = avio_rb32(pb);
codec->max_b_frames = avio_rb32(pb);
codec->mpeg_quant = avio_rb32(pb);
codec->intra_dc_precision = avio_rb32(pb);
codec->me_method = avio_rb32(pb);
codec->mb_decision = avio_rb32(pb);
codec->nsse_weight = avio_rb32(pb);
codec->frame_skip_cmp = avio_rb32(pb);
codec->rc_buffer_aggressivity = av_int2double(avio_rb64(pb));
codec->codec_tag = avio_rb32(pb);
codec->thread_count = avio_r8(pb);
codec->coder_type = avio_rb32(pb);
codec->me_cmp = avio_rb32(pb);
codec->me_subpel_quality = avio_rb32(pb);
codec->me_range = avio_rb32(pb);
codec->keyint_min = avio_rb32(pb);
codec->scenechange_threshold = avio_rb32(pb);
codec->b_frame_strategy = avio_rb32(pb);
codec->qcompress = av_int2double(avio_rb64(pb));
codec->qblur = av_int2double(avio_rb64(pb));
codec->max_qdiff = avio_rb32(pb);
codec->refs = avio_rb32(pb);
break;
case AVMEDIA_TYPE_AUDIO:
codec->sample_rate = avio_rb32(pb);
codec->channels = avio_rl16(pb);
codec->frame_size = avio_rl16(pb);
break;
default:
goto fail;
}
if (codec->flags & CODEC_FLAG_GLOBAL_HEADER) {
codec->extradata_size = avio_rb32(pb);
codec->extradata = av_malloc(codec->extradata_size);
if (!codec->extradata)
return AVERROR(ENOMEM);
avio_read(pb, codec->extradata, codec->extradata_size);
}
}
/* get until end of block reached */
while ((avio_tell(pb) % ffm->packet_size) != 0)
avio_r8(pb);
/* init packet demux */
ffm->packet_ptr = ffm->packet;
ffm->packet_end = ffm->packet;
ffm->frame_offset = 0;
ffm->dts = 0;
ffm->read_state = READ_HEADER;
ffm->first_packet = 1;
return 0;
fail:
ffm_close(s);
return -1;
}
static int r3d_read_red1(AVFormatContext *s)
{
AVStream *st = avformat_new_stream(s, NULL);
char filename[258];
int tmp;
int av_unused tmp2;
AVRational framerate;
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_JPEG2000;
tmp = avio_r8(s->pb); // major version
tmp2 = avio_r8(s->pb); // minor version
av_dlog(s, "version %d.%d\n", tmp, tmp2);
tmp = avio_rb16(s->pb); // unknown
av_dlog(s, "unknown1 %d\n", tmp);
tmp = avio_rb32(s->pb);
avpriv_set_pts_info(st, 32, 1, tmp);
tmp = avio_rb32(s->pb); // filenum
av_dlog(s, "filenum %d\n", tmp);
avio_skip(s->pb, 32); // unknown
st->codec->width = avio_rb32(s->pb);
st->codec->height = avio_rb32(s->pb);
tmp = avio_rb16(s->pb); // unknown
av_dlog(s, "unknown2 %d\n", tmp);
framerate.num = avio_rb16(s->pb);
framerate.den = avio_rb16(s->pb);
if (framerate.num > 0 && framerate.den > 0) {
#if FF_API_R_FRAME_RATE
st->r_frame_rate =
#endif
st->avg_frame_rate = framerate;
}
tmp = avio_r8(s->pb); // audio channels
av_dlog(s, "audio channels %d\n", tmp);
if (tmp > 0) {
AVStream *ast = avformat_new_stream(s, NULL);
if (!ast)
return AVERROR(ENOMEM);
ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
ast->codec->codec_id = AV_CODEC_ID_PCM_S32BE;
ast->codec->channels = tmp;
avpriv_set_pts_info(ast, 32, 1, st->time_base.den);
}
avio_read(s->pb, filename, 257);
filename[sizeof(filename)-1] = 0;
av_dict_set(&st->metadata, "filename", filename, 0);
av_dlog(s, "filename %s\n", filename);
av_dlog(s, "resolution %dx%d\n", st->codec->width, st->codec->height);
av_dlog(s, "timescale %d\n", st->time_base.den);
av_dlog(s, "frame rate %d/%d\n",
framerate.num, framerate.den);
return 0;
}
/* first is true if we read the frame header */
static int ffm_read_data(AVFormatContext *s,
uint8_t *buf, int size, int header)
{
FFMContext *ffm = s->priv_data;
AVIOContext *pb = s->pb;
int len, fill_size, size1, frame_offset, id;
size1 = size;
while (size > 0) {
redo:
len = ffm->packet_end - ffm->packet_ptr;
if (len < 0)
return -1;
if (len > size)
len = size;
if (len == 0) {
if (avio_tell(pb) == ffm->file_size)
avio_seek(pb, ffm->packet_size, SEEK_SET);
retry_read:
if (pb->buffer_size != ffm->packet_size) {
int64_t tell = avio_tell(pb);
ffio_set_buf_size(pb, ffm->packet_size);
avio_seek(pb, tell, SEEK_SET);
}
id = avio_rb16(pb); /* PACKET_ID */
if (id != PACKET_ID)
if (ffm_resync(s, id) < 0)
return -1;
fill_size = avio_rb16(pb);
ffm->dts = avio_rb64(pb);
frame_offset = avio_rb16(pb);
avio_read(pb, ffm->packet, ffm->packet_size - FFM_HEADER_SIZE);
ffm->packet_end = ffm->packet + (ffm->packet_size - FFM_HEADER_SIZE - fill_size);
if (ffm->packet_end < ffm->packet || frame_offset < 0)
return -1;
/* if first packet or resynchronization packet, we must
handle it specifically */
if (ffm->first_packet || (frame_offset & 0x8000)) {
if (!frame_offset) {
/* This packet has no frame headers in it */
if (avio_tell(pb) >= ffm->packet_size * 3) {
avio_seek(pb, -ffm->packet_size * 2, SEEK_CUR);
goto retry_read;
}
/* This is bad, we cannot find a valid frame header */
return 0;
}
ffm->first_packet = 0;
if ((frame_offset & 0x7fff) < FFM_HEADER_SIZE)
return -1;
ffm->packet_ptr = ffm->packet + (frame_offset & 0x7fff) - FFM_HEADER_SIZE;
if (!header)
break;
} else {
ffm->packet_ptr = ffm->packet;
}
goto redo;
}
memcpy(buf, ffm->packet_ptr, len);
buf += len;
ffm->packet_ptr += len;
size -= len;
header = 0;
}
return size1 - size;
}
static int load_ipmovie_packet(IPMVEContext *s, AVIOContext *pb,
AVPacket *pkt) {
int chunk_type;
if (s->audio_chunk_offset && s->audio_channels && s->audio_bits) {
if (s->audio_type == AV_CODEC_ID_NONE) {
av_log(NULL, AV_LOG_ERROR, "Can not read audio packet before"
"audio codec is known\n");
return CHUNK_BAD;
}
/* adjust for PCM audio by skipping chunk header */
if (s->audio_type != AV_CODEC_ID_INTERPLAY_DPCM) {
s->audio_chunk_offset += 6;
s->audio_chunk_size -= 6;
}
avio_seek(pb, s->audio_chunk_offset, SEEK_SET);
s->audio_chunk_offset = 0;
if (s->audio_chunk_size != av_get_packet(pb, pkt, s->audio_chunk_size))
return CHUNK_EOF;
pkt->stream_index = s->audio_stream_index;
pkt->pts = s->audio_frame_count;
/* audio frame maintenance */
if (s->audio_type != AV_CODEC_ID_INTERPLAY_DPCM)
s->audio_frame_count +=
(s->audio_chunk_size / s->audio_channels / (s->audio_bits / 8));
else
s->audio_frame_count +=
(s->audio_chunk_size - 6 - s->audio_channels) / s->audio_channels;
av_log(NULL, AV_LOG_TRACE, "sending audio frame with pts %"PRId64" (%d audio frames)\n",
pkt->pts, s->audio_frame_count);
chunk_type = CHUNK_VIDEO;
} else if (s->decode_map_chunk_offset) {
/* send both the decode map and the video data together */
if (av_new_packet(pkt, s->decode_map_chunk_size + s->video_chunk_size))
return CHUNK_NOMEM;
if (s->has_palette) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
if (pal) {
memcpy(pal, s->palette, AVPALETTE_SIZE);
s->has_palette = 0;
}
}
if (s->changed) {
ff_add_param_change(pkt, 0, 0, 0, s->video_width, s->video_height);
s->changed = 0;
}
pkt->pos= s->decode_map_chunk_offset;
avio_seek(pb, s->decode_map_chunk_offset, SEEK_SET);
s->decode_map_chunk_offset = 0;
if (avio_read(pb, pkt->data, s->decode_map_chunk_size) !=
s->decode_map_chunk_size) {
av_free_packet(pkt);
return CHUNK_EOF;
}
avio_seek(pb, s->video_chunk_offset, SEEK_SET);
s->video_chunk_offset = 0;
if (avio_read(pb, pkt->data + s->decode_map_chunk_size,
s->video_chunk_size) != s->video_chunk_size) {
av_free_packet(pkt);
return CHUNK_EOF;
}
pkt->stream_index = s->video_stream_index;
pkt->pts = s->video_pts;
av_log(NULL, AV_LOG_TRACE, "sending video frame with pts %"PRId64"\n", pkt->pts);
s->video_pts += s->frame_pts_inc;
chunk_type = CHUNK_VIDEO;
} else {
avio_seek(pb, s->next_chunk_offset, SEEK_SET);
chunk_type = CHUNK_DONE;
}
return chunk_type;
}
int ff_img_read_header(AVFormatContext *s1)
{
VideoDemuxData *s = s1->priv_data;
int first_index = 1, last_index = 1;
AVStream *st;
enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
s1->ctx_flags |= AVFMTCTX_NOHEADER;
st = avformat_new_stream(s1, NULL);
if (!st) {
return AVERROR(ENOMEM);
}
if (s->pixel_format &&
(pix_fmt = av_get_pix_fmt(s->pixel_format)) == AV_PIX_FMT_NONE) {
av_log(s1, AV_LOG_ERROR, "No such pixel format: %s.\n",
s->pixel_format);
return AVERROR(EINVAL);
}
av_strlcpy(s->path, s1->filename, sizeof(s->path));
s->img_number = 0;
s->img_count = 0;
/* find format */
if (s1->iformat->flags & AVFMT_NOFILE)
s->is_pipe = 0;
else {
s->is_pipe = 1;
st->need_parsing = AVSTREAM_PARSE_FULL;
}
if (s->ts_from_file == 2) {
#if !HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
av_log(s1, AV_LOG_ERROR, "POSIX.1-2008 not supported, nanosecond file timestamps unavailable\n");
return AVERROR(ENOSYS);
#endif
avpriv_set_pts_info(st, 64, 1, 1000000000);
} else if (s->ts_from_file)
avpriv_set_pts_info(st, 64, 1, 1);
else
avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num);
if (s->width && s->height) {
st->codec->width = s->width;
st->codec->height = s->height;
}
if (!s->is_pipe) {
if (s->pattern_type == PT_GLOB_SEQUENCE) {
s->use_glob = is_glob(s->path);
if (s->use_glob) {
#if HAVE_GLOB
char *p = s->path, *q, *dup;
int gerr;
#endif
av_log(s1, AV_LOG_WARNING, "Pattern type 'glob_sequence' is deprecated: "
"use pattern_type 'glob' instead\n");
#if HAVE_GLOB
dup = q = av_strdup(p);
while (*q) {
/* Do we have room for the next char and a \ insertion? */
if ((p - s->path) >= (sizeof(s->path) - 2))
break;
if (*q == '%' && strspn(q + 1, "%*?[]{}"))
++q;
else if (strspn(q, "\\*?[]{}"))
*p++ = '\\';
*p++ = *q++;
}
*p = 0;
av_free(dup);
gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate);
if (gerr != 0) {
return AVERROR(ENOENT);
}
first_index = 0;
last_index = s->globstate.gl_pathc - 1;
#endif
}
}
if ((s->pattern_type == PT_GLOB_SEQUENCE && !s->use_glob) || s->pattern_type == PT_SEQUENCE) {
if (find_image_range(s1->pb, &first_index, &last_index, s->path,
s->start_number, s->start_number_range) < 0) {
av_log(s1, AV_LOG_ERROR,
"Could find no file with path '%s' and index in the range %d-%d\n",
s->path, s->start_number, s->start_number + s->start_number_range - 1);
return AVERROR(ENOENT);
}
} else if (s->pattern_type == PT_GLOB) {
#if HAVE_GLOB
int gerr;
gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate);
if (gerr != 0) {
return AVERROR(ENOENT);
}
first_index = 0;
last_index = s->globstate.gl_pathc - 1;
s->use_glob = 1;
#else
av_log(s1, AV_LOG_ERROR,
"Pattern type 'glob' was selected but globbing "
"is not supported by this libavformat build\n");
return AVERROR(ENOSYS);
#endif
} else if (s->pattern_type != PT_GLOB_SEQUENCE && s->pattern_type != PT_NONE) {
av_log(s1, AV_LOG_ERROR,
"Unknown value '%d' for pattern_type option\n", s->pattern_type);
return AVERROR(EINVAL);
}
s->img_first = first_index;
s->img_last = last_index;
s->img_number = first_index;
/* compute duration */
if (!s->ts_from_file) {
st->start_time = 0;
st->duration = last_index - first_index + 1;
}
}
if (s1->video_codec_id) {
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = s1->video_codec_id;
} else if (s1->audio_codec_id) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = s1->audio_codec_id;
} else if (s1->iformat->raw_codec_id) {
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = s1->iformat->raw_codec_id;
} else {
const char *str = strrchr(s->path, '.');
s->split_planes = str && !av_strcasecmp(str + 1, "y");
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
if (s1->pb) {
int probe_buffer_size = 2048;
uint8_t *probe_buffer = av_realloc(NULL, probe_buffer_size + AVPROBE_PADDING_SIZE);
AVInputFormat *fmt = NULL;
AVProbeData pd = { 0 };
if (!probe_buffer)
return AVERROR(ENOMEM);
probe_buffer_size = avio_read(s1->pb, probe_buffer, probe_buffer_size);
if (probe_buffer_size < 0) {
av_free(probe_buffer);
return probe_buffer_size;
}
memset(probe_buffer + probe_buffer_size, 0, AVPROBE_PADDING_SIZE);
pd.buf = probe_buffer;
pd.buf_size = probe_buffer_size;
pd.filename = s1->filename;
while ((fmt = av_iformat_next(fmt))) {
if (fmt->read_header != ff_img_read_header ||
!fmt->read_probe ||
(fmt->flags & AVFMT_NOFILE) ||
!fmt->raw_codec_id)
continue;
if (fmt->read_probe(&pd) > 0) {
st->codec->codec_id = fmt->raw_codec_id;
break;
}
}
if (s1->flags & AVFMT_FLAG_CUSTOM_IO) {
avio_seek(s1->pb, 0, SEEK_SET);
} else
ffio_rewind_with_probe_data(s1->pb, &probe_buffer, probe_buffer_size);
}
if (st->codec->codec_id == AV_CODEC_ID_NONE)
st->codec->codec_id = ff_guess_image2_codec(s->path);
if (st->codec->codec_id == AV_CODEC_ID_LJPEG)
st->codec->codec_id = AV_CODEC_ID_MJPEG;
if (st->codec->codec_id == AV_CODEC_ID_ALIAS_PIX) // we cannot distingiush this from BRENDER_PIX
st->codec->codec_id = AV_CODEC_ID_NONE;
}
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
pix_fmt != AV_PIX_FMT_NONE)
st->codec->pix_fmt = pix_fmt;
return 0;
}
static int ipmovie_read_header(AVFormatContext *s)
{
IPMVEContext *ipmovie = s->priv_data;
AVIOContext *pb = s->pb;
AVPacket pkt;
AVStream *st;
unsigned char chunk_preamble[CHUNK_PREAMBLE_SIZE];
int chunk_type, i;
uint8_t signature_buffer[sizeof(signature)];
ipmovie->avf = s;
avio_read(pb, signature_buffer, sizeof(signature_buffer));
while (memcmp(signature_buffer, signature, sizeof(signature))) {
memmove(signature_buffer, signature_buffer + 1, sizeof(signature_buffer) - 1);
signature_buffer[sizeof(signature_buffer) - 1] = avio_r8(pb);
if (avio_feof(pb))
return AVERROR_EOF;
}
/* initialize private context members */
ipmovie->video_pts = ipmovie->audio_frame_count = 0;
ipmovie->audio_chunk_offset = ipmovie->video_chunk_offset =
ipmovie->decode_map_chunk_offset = 0;
/* on the first read, this will position the stream at the first chunk */
ipmovie->next_chunk_offset = avio_tell(pb) + 4;
for (i = 0; i < 256; i++)
ipmovie->palette[i] = 0xFFU << 24;
/* process the first chunk which should be CHUNK_INIT_VIDEO */
if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_VIDEO)
return AVERROR_INVALIDDATA;
/* peek ahead to the next chunk-- if it is an init audio chunk, process
* it; if it is the first video chunk, this is a silent file */
if (avio_read(pb, chunk_preamble, CHUNK_PREAMBLE_SIZE) !=
CHUNK_PREAMBLE_SIZE)
return AVERROR(EIO);
chunk_type = AV_RL16(&chunk_preamble[2]);
avio_seek(pb, -CHUNK_PREAMBLE_SIZE, SEEK_CUR);
if (chunk_type == CHUNK_VIDEO)
ipmovie->audio_type = AV_CODEC_ID_NONE; /* no audio */
else if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_AUDIO)
return AVERROR_INVALIDDATA;
/* initialize the stream decoders */
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 63, 1, 1000000);
ipmovie->video_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_INTERPLAY_VIDEO;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = ipmovie->video_width;
st->codec->height = ipmovie->video_height;
st->codec->bits_per_coded_sample = ipmovie->video_bpp;
if (ipmovie->audio_type) {
return init_audio(s);
} else
s->ctx_flags |= AVFMTCTX_NOHEADER;
return 0;
}
int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
VideoDemuxData *s = s1->priv_data;
char filename_bytes[1024];
char *filename = filename_bytes;
int i, res;
int size[3] = { 0 }, ret[3] = { 0 };
AVIOContext *f[3] = { NULL };
AVCodecContext *codec = s1->streams[0]->codec;
if (!s->is_pipe) {
/* loop over input */
if (s->loop && s->img_number > s->img_last) {
s->img_number = s->img_first;
}
if (s->img_number > s->img_last)
return AVERROR_EOF;
if (s->pattern_type == PT_NONE) {
av_strlcpy(filename_bytes, s->path, sizeof(filename_bytes));
} else if (s->use_glob) {
#if HAVE_GLOB
filename = s->globstate.gl_pathv[s->img_number];
#endif
} else {
if (av_get_frame_filename(filename_bytes, sizeof(filename_bytes),
s->path,
s->img_number) < 0 && s->img_number > 1)
return AVERROR(EIO);
}
for (i = 0; i < 3; i++) {
if (s1->pb &&
!strcmp(filename_bytes, s->path) &&
!s->loop &&
!s->split_planes) {
f[i] = s1->pb;
} else if (avio_open2(&f[i], filename, AVIO_FLAG_READ,
&s1->interrupt_callback, NULL) < 0) {
if (i >= 1)
break;
av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",
filename);
return AVERROR(EIO);
}
size[i] = avio_size(f[i]);
if (!s->split_planes)
break;
filename[strlen(filename) - 1] = 'U' + i;
}
if (codec->codec_id == AV_CODEC_ID_NONE) {
AVProbeData pd = { 0 };
AVInputFormat *ifmt;
uint8_t header[PROBE_BUF_MIN + AVPROBE_PADDING_SIZE];
int ret;
int score = 0;
ret = avio_read(f[0], header, PROBE_BUF_MIN);
if (ret < 0)
return ret;
memset(header + ret, 0, sizeof(header) - ret);
avio_skip(f[0], -ret);
pd.buf = header;
pd.buf_size = ret;
pd.filename = filename;
ifmt = av_probe_input_format3(&pd, 1, &score);
if (ifmt && ifmt->read_packet == ff_img_read_packet && ifmt->raw_codec_id)
codec->codec_id = ifmt->raw_codec_id;
}
if (codec->codec_id == AV_CODEC_ID_RAWVIDEO && !codec->width)
infer_size(&codec->width, &codec->height, size[0]);
} else {
f[0] = s1->pb;
if (avio_feof(f[0]) && s->loop && s->is_pipe)
avio_seek(f[0], 0, SEEK_SET);
if (avio_feof(f[0]))
return AVERROR_EOF;
if (s->frame_size > 0) {
size[0] = s->frame_size;
} else if (!s1->streams[0]->parser) {
size[0] = avio_size(s1->pb);
} else {
size[0] = 4096;
}
}
res = av_new_packet(pkt, size[0] + size[1] + size[2]);
if (res < 0) {
goto fail;
}
pkt->stream_index = 0;
pkt->flags |= AV_PKT_FLAG_KEY;
if (s->ts_from_file) {
struct stat img_stat;
if (stat(filename, &img_stat)) {
res = AVERROR(EIO);
goto fail;
}
pkt->pts = (int64_t)img_stat.st_mtime;
#if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
if (s->ts_from_file == 2)
pkt->pts = 1000000000*pkt->pts + img_stat.st_mtim.tv_nsec;
#endif
av_add_index_entry(s1->streams[0], s->img_number, pkt->pts, 0, 0, AVINDEX_KEYFRAME);
} else if (!s->is_pipe) {
pkt->pts = s->pts;
}
if (s->is_pipe)
pkt->pos = avio_tell(f[0]);
pkt->size = 0;
for (i = 0; i < 3; i++) {
if (f[i]) {
ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]);
if (s->loop && s->is_pipe && ret[i] == AVERROR_EOF) {
if (avio_seek(f[i], 0, SEEK_SET) >= 0) {
pkt->pos = 0;
ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]);
}
}
if (!s->is_pipe && f[i] != s1->pb)
avio_closep(&f[i]);
if (ret[i] > 0)
pkt->size += ret[i];
}
}
if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) {
av_packet_unref(pkt);
if (ret[0] < 0) {
res = ret[0];
} else if (ret[1] < 0) {
res = ret[1];
} else if (ret[2] < 0) {
res = ret[2];
} else {
res = AVERROR_EOF;
}
goto fail;
} else {
s->img_count++;
s->img_number++;
s->pts++;
return 0;
}
fail:
if (!s->is_pipe) {
for (i = 0; i < 3; i++) {
if (f[i] != s1->pb)
avio_closep(&f[i]);
}
}
return res;
}
/**
* read rl2 header data and setup the avstreams
* @param s demuxer context
* @param ap format parameters
* @return 0 on success, AVERROR otherwise
*/
static av_cold int rl2_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
AVIOContext *pb = s->pb;
AVStream *st;
unsigned int frame_count;
unsigned int audio_frame_counter = 0;
unsigned int video_frame_counter = 0;
unsigned int back_size;
unsigned short sound_rate;
unsigned short rate;
unsigned short channels;
unsigned short def_sound_size;
unsigned int signature;
unsigned int pts_den = 11025; /* video only case */
unsigned int pts_num = 1103;
unsigned int* chunk_offset = NULL;
int* chunk_size = NULL;
int* audio_size = NULL;
int i;
int ret = 0;
avio_skip(pb,4); /* skip FORM tag */
back_size = avio_rl32(pb); /**< get size of the background frame */
signature = avio_rb32(pb);
avio_skip(pb, 4); /* data size */
frame_count = avio_rl32(pb);
/* disallow back_sizes and frame_counts that may lead to overflows later */
if(back_size > INT_MAX/2 || frame_count > INT_MAX / sizeof(uint32_t))
return AVERROR_INVALIDDATA;
avio_skip(pb, 2); /* encoding mentod */
sound_rate = avio_rl16(pb);
rate = avio_rl16(pb);
channels = avio_rl16(pb);
def_sound_size = avio_rl16(pb);
/** setup video stream */
st = avformat_new_stream(s, NULL);
if(!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_RL2;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = 320;
st->codec->height = 200;
/** allocate and fill extradata */
st->codec->extradata_size = EXTRADATA1_SIZE;
if(signature == RLV3_TAG && back_size > 0)
st->codec->extradata_size += back_size;
st->codec->extradata = av_mallocz(st->codec->extradata_size +
FF_INPUT_BUFFER_PADDING_SIZE);
if(!st->codec->extradata)
return AVERROR(ENOMEM);
if(avio_read(pb,st->codec->extradata,st->codec->extradata_size) !=
st->codec->extradata_size)
return AVERROR(EIO);
/** setup audio stream if present */
if(sound_rate){
pts_num = def_sound_size;
pts_den = rate;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_PCM_U8;
st->codec->codec_tag = 1;
st->codec->channels = channels;
st->codec->bits_per_coded_sample = 8;
st->codec->sample_rate = rate;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample;
st->codec->block_align = st->codec->channels *
st->codec->bits_per_coded_sample / 8;
av_set_pts_info(st,32,1,rate);
}
av_set_pts_info(s->streams[0], 32, pts_num, pts_den);
chunk_size = av_malloc(frame_count * sizeof(uint32_t));
audio_size = av_malloc(frame_count * sizeof(uint32_t));
chunk_offset = av_malloc(frame_count * sizeof(uint32_t));
if(!chunk_size || !audio_size || !chunk_offset){
av_free(chunk_size);
av_free(audio_size);
av_free(chunk_offset);
return AVERROR(ENOMEM);
}
/** read offset and size tables */
for(i=0; i < frame_count;i++)
chunk_size[i] = avio_rl32(pb);
for(i=0; i < frame_count;i++)
chunk_offset[i] = avio_rl32(pb);
for(i=0; i < frame_count;i++)
audio_size[i] = avio_rl32(pb) & 0xFFFF;
/** build the sample index */
for(i=0;i<frame_count;i++){
if(chunk_size[i] < 0 || audio_size[i] > chunk_size[i]){
ret = AVERROR_INVALIDDATA;
break;
}
if(sound_rate && audio_size[i]){
av_add_index_entry(s->streams[1], chunk_offset[i],
audio_frame_counter,audio_size[i], 0, AVINDEX_KEYFRAME);
audio_frame_counter += audio_size[i] / channels;
}
av_add_index_entry(s->streams[0], chunk_offset[i] + audio_size[i],
video_frame_counter,chunk_size[i]-audio_size[i],0,AVINDEX_KEYFRAME);
++video_frame_counter;
}
av_free(chunk_size);
av_free(audio_size);
av_free(chunk_offset);
return ret;
}
static int ape_tag_read_field(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
uint8_t key[1024], *value;
uint32_t size, flags;
int i, c;
size = avio_rl32(pb); /* field size */
flags = avio_rl32(pb); /* field flags */
for (i = 0; i < sizeof(key) - 1; i++) {
c = avio_r8(pb);
if (c < 0x20 || c > 0x7E)
break;
else
key[i] = c;
}
key[i] = 0;
if (c != 0) {
av_log(s, AV_LOG_WARNING, "Invalid APE tag key '%s'.\n", key);
return -1;
}
if (size > INT32_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
av_log(s, AV_LOG_ERROR, "APE tag size too large.\n");
return AVERROR_INVALIDDATA;
}
if (flags & APE_TAG_FLAG_IS_BINARY) {
uint8_t filename[1024];
enum AVCodecID id;
AVStream *st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
size -= avio_get_str(pb, size, filename, sizeof(filename));
if (size <= 0) {
av_log(s, AV_LOG_WARNING, "Skipping binary tag '%s'.\n", key);
return 0;
}
av_dict_set(&st->metadata, key, filename, 0);
if ((id = ff_guess_image2_codec(filename)) != AV_CODEC_ID_NONE) {
AVPacket pkt;
int ret;
ret = av_get_packet(s->pb, &pkt, size);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Error reading cover art.\n");
return ret;
}
st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = id;
st->attached_pic = pkt;
st->attached_pic.stream_index = st->index;
st->attached_pic.flags |= AV_PKT_FLAG_KEY;
} else {
st->codec->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
if (avio_read(pb, st->codec->extradata, size) != size) {
av_freep(&st->codec->extradata);
return AVERROR(EIO);
}
st->codec->extradata_size = size;
st->codec->codec_type = AVMEDIA_TYPE_ATTACHMENT;
}
} else {
value = av_malloc(size+1);
if (!value)
return AVERROR(ENOMEM);
c = avio_read(pb, value, size);
if (c < 0) {
av_free(value);
return c;
}
value[c] = 0;
av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
}
return 0;
}
static int fourxm_read_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
unsigned int fourcc_tag;
unsigned int size;
int header_size;
FourxmDemuxContext *fourxm = s->priv_data;
unsigned char *header;
int i, ret;
fourxm->track_count = 0;
fourxm->tracks = NULL;
fourxm->fps = 1.0;
/* skip the first 3 32-bit numbers */
avio_skip(pb, 12);
/* check for LIST-HEAD */
GET_LIST_HEADER();
header_size = size - 4;
if (fourcc_tag != HEAD_TAG || header_size < 0)
return AVERROR_INVALIDDATA;
/* allocate space for the header and load the whole thing */
header = av_malloc(header_size);
if (!header)
return AVERROR(ENOMEM);
if (avio_read(pb, header, header_size) != header_size) {
av_free(header);
return AVERROR(EIO);
}
/* take the lazy approach and search for any and all vtrk and strk chunks */
for (i = 0; i < header_size - 8; i++) {
fourcc_tag = AV_RL32(&header[i]);
size = AV_RL32(&header[i + 4]);
if (fourcc_tag == std__TAG) {
if (header_size - i < 16) {
ret = AVERROR_INVALIDDATA;
goto fail;
}
fourxm->fps = av_int2float(AV_RL32(&header[i + 12]));
} else if (fourcc_tag == vtrk_TAG) {
if ((ret = parse_vtrk(s, fourxm, header + i, size,
header_size - i)) < 0)
goto fail;
i += 8 + size;
} else if (fourcc_tag == strk_TAG) {
if ((ret = parse_strk(s, fourxm, header + i, size,
header_size - i)) < 0)
goto fail;
i += 8 + size;
}
}
/* skip over the LIST-MOVI chunk (which is where the stream should be */
GET_LIST_HEADER();
if (fourcc_tag != MOVI_TAG) {
ret = AVERROR_INVALIDDATA;
goto fail;
}
av_free(header);
/* initialize context members */
fourxm->video_pts = -1; /* first frame will push to 0 */
return 0;
fail:
av_freep(&fourxm->tracks);
av_free(header);
return ret;
}
static int read_packet(AVFormatContext *s1, AVPacket *pkt)
{
VideoData *s = s1->priv_data;
char filename[1024];
int i;
int size[3]={0}, ret[3]={0};
AVIOContext *f[3];
AVCodecContext *codec= s1->streams[0]->codec;
if (!s->is_pipe) {
/* loop over input */
if (s1->loop_input && s->img_number > s->img_last) {
s->img_number = s->img_first;
}
if (s->img_number > s->img_last)
return AVERROR_EOF;
if (av_get_frame_filename(filename, sizeof(filename),
s->path, s->img_number)<0 && s->img_number > 1)
return AVERROR(EIO);
for(i=0; i<3; i++){
if (avio_open(&f[i], filename, AVIO_FLAG_READ) < 0) {
if(i==1)
break;
av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",filename);
return AVERROR(EIO);
}
size[i]= avio_size(f[i]);
if(!s->split_planes)
break;
filename[ strlen(filename) - 1 ]= 'U' + i;
}
if(codec->codec_id == CODEC_ID_RAWVIDEO && !codec->width)
infer_size(&codec->width, &codec->height, size[0]);
} else {
f[0] = s1->pb;
if (url_feof(f[0]))
return AVERROR(EIO);
size[0]= 4096;
}
av_new_packet(pkt, size[0] + size[1] + size[2]);
pkt->stream_index = 0;
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->size= 0;
for(i=0; i<3; i++){
if(size[i]){
ret[i]= avio_read(f[i], pkt->data + pkt->size, size[i]);
if (!s->is_pipe)
avio_close(f[i]);
if(ret[i]>0)
pkt->size += ret[i];
}
}
if (ret[0] <= 0 || ret[1]<0 || ret[2]<0) {
av_free_packet(pkt);
return AVERROR(EIO); /* signal EOF */
} else {
s->img_count++;
s->img_number++;
return 0;
}
}
static int mpc_read_header(AVFormatContext *s)
{
MPCContext *c = s->priv_data;
AVStream *st;
if(avio_rl24(s->pb) != MKTAG('M', 'P', '+', 0)){
av_log(s, AV_LOG_ERROR, "Not a Musepack file\n");
return -1;
}
c->ver = avio_r8(s->pb);
if(c->ver != 0x07 && c->ver != 0x17){
av_log(s, AV_LOG_ERROR, "Can demux Musepack SV7, got version %02X\n", c->ver);
return -1;
}
c->fcount = avio_rl32(s->pb);
if((int64_t)c->fcount * sizeof(MPCFrame) >= UINT_MAX){
av_log(s, AV_LOG_ERROR, "Too many frames, seeking is not possible\n");
return -1;
}
if(c->fcount){
c->frames = av_malloc(c->fcount * sizeof(MPCFrame));
if(!c->frames){
av_log(s, AV_LOG_ERROR, "Cannot allocate seektable\n");
return AVERROR(ENOMEM);
}
}else{
av_log(s, AV_LOG_WARNING, "Container reports no frames\n");
}
c->curframe = 0;
c->lastframe = -1;
c->curbits = 8;
c->frames_noted = 0;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_MUSEPACK7;
st->codec->channels = 2;
st->codec->bits_per_coded_sample = 16;
st->codec->extradata_size = 16;
st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
avio_read(s->pb, st->codec->extradata, 16);
st->codec->sample_rate = mpc_rate[st->codec->extradata[2] & 3];
avpriv_set_pts_info(st, 32, MPC_FRAMESIZE, st->codec->sample_rate);
/* scan for seekpoints */
st->start_time = 0;
st->duration = c->fcount;
/* try to read APE tags */
if (s->pb->seekable) {
int64_t pos = avio_tell(s->pb);
ff_ape_parse_tag(s);
if (!av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX))
ff_id3v1_read(s);
avio_seek(s->pb, pos, SEEK_SET);
}
return 0;
}
/* aiff input */
static int aiff_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
int size, filesize;
int64_t offset = 0;
uint32_t tag;
unsigned version = AIFF_C_VERSION1;
AVIOContext *pb = s->pb;
AVStream * st;
AIFFInputContext *aiff = s->priv_data;
/* check FORM header */
filesize = get_tag(pb, &tag);
if (filesize < 0 || tag != MKTAG('F', 'O', 'R', 'M'))
return AVERROR_INVALIDDATA;
/* AIFF data type */
tag = avio_rl32(pb);
if (tag == MKTAG('A', 'I', 'F', 'F')) /* Got an AIFF file */
version = AIFF;
else if (tag != MKTAG('A', 'I', 'F', 'C')) /* An AIFF-C file then */
return AVERROR_INVALIDDATA;
filesize -= 4;
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
while (filesize > 0) {
/* parse different chunks */
size = get_tag(pb, &tag);
if (size < 0)
return size;
filesize -= size + 8;
switch (tag) {
case MKTAG('C', 'O', 'M', 'M'): /* Common chunk */
/* Then for the complete header info */
st->nb_frames = get_aiff_header(pb, st->codec, size, version);
if (st->nb_frames < 0)
return st->nb_frames;
if (offset > 0) // COMM is after SSND
goto got_sound;
break;
case MKTAG('F', 'V', 'E', 'R'): /* Version chunk */
version = avio_rb32(pb);
break;
case MKTAG('N', 'A', 'M', 'E'): /* Sample name chunk */
get_meta(s, "title" , size);
break;
case MKTAG('A', 'U', 'T', 'H'): /* Author chunk */
get_meta(s, "author" , size);
break;
case MKTAG('(', 'c', ')', ' '): /* Copyright chunk */
get_meta(s, "copyright", size);
break;
case MKTAG('A', 'N', 'N', 'O'): /* Annotation chunk */
get_meta(s, "comment" , size);
break;
case MKTAG('S', 'S', 'N', 'D'): /* Sampled sound chunk */
aiff->data_end = avio_tell(pb) + size;
offset = avio_rb32(pb); /* Offset of sound data */
avio_rb32(pb); /* BlockSize... don't care */
offset += avio_tell(pb); /* Compute absolute data offset */
if (st->codec->block_align) /* Assume COMM already parsed */
goto got_sound;
if (!pb->seekable) {
av_log(s, AV_LOG_ERROR, "file is not seekable\n");
return -1;
}
avio_skip(pb, size - 8);
break;
case MKTAG('w', 'a', 'v', 'e'):
if ((uint64_t)size > (1<<30))
return -1;
st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = size;
avio_read(pb, st->codec->extradata, size);
break;
default: /* Jump */
if (size & 1) /* Always even aligned */
size++;
avio_skip(pb, size);
}
}
if (!st->codec->block_align) {
av_log(s, AV_LOG_ERROR, "could not find COMM tag\n");
return -1;
}
got_sound:
/* Now positioned, get the sound data start and end */
if (st->nb_frames)
s->file_size = st->nb_frames * st->codec->block_align;
av_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;
st->duration = st->codec->frame_size ?
st->nb_frames * st->codec->frame_size : st->nb_frames;
/* Position the stream at the first block */
avio_seek(pb, offset, SEEK_SET);
return 0;
}
static int idcin_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
int ret;
unsigned int command;
unsigned int chunk_size;
IdcinDemuxContext *idcin = s->priv_data;
AVIOContext *pb = s->pb;
int i;
int palette_scale;
unsigned char r, g, b;
unsigned char palette_buffer[768];
uint32_t palette[256];
if (url_feof(s->pb))
return AVERROR(EIO);
if (idcin->next_chunk_is_video) {
command = avio_rl32(pb);
if (command == 2) {
return AVERROR(EIO);
} else if (command == 1) {
/* trigger a palette change */
if (avio_read(pb, palette_buffer, 768) != 768)
return AVERROR(EIO);
/* scale the palette as necessary */
palette_scale = 2;
for (i = 0; i < 768; i++)
if (palette_buffer[i] > 63) {
palette_scale = 0;
break;
}
for (i = 0; i < 256; i++) {
r = palette_buffer[i * 3 ] << palette_scale;
g = palette_buffer[i * 3 + 1] << palette_scale;
b = palette_buffer[i * 3 + 2] << palette_scale;
palette[i] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
if (palette_scale == 2)
palette[i] |= palette[i] >> 6 & 0x30303;
}
}
chunk_size = avio_rl32(pb);
/* skip the number of decoded bytes (always equal to width * height) */
avio_skip(pb, 4);
if (chunk_size < 4)
return AVERROR_INVALIDDATA;
chunk_size -= 4;
ret= av_get_packet(pb, pkt, chunk_size);
if (ret < 0)
return ret;
if (command == 1) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
if (!pal)
return AVERROR(ENOMEM);
memcpy(pal, palette, AVPALETTE_SIZE);
}
pkt->stream_index = idcin->video_stream_index;
pkt->pts = idcin->pts;
} else {
static int avs_read_packet(AVFormatContext * s, AVPacket * pkt)
{
AvsFormat *avs = s->priv_data;
int sub_type = 0, size = 0;
AvsBlockType type = AVS_NONE;
int palette_size = 0;
uint8_t palette[4 + 3 * 256];
int ret;
if (avs->remaining_audio_size > 0)
if (avs_read_audio_packet(s, pkt) > 0)
return 0;
while (1) {
if (avs->remaining_frame_size <= 0) {
if (!avio_rl16(s->pb)) /* found EOF */
return AVERROR(EIO);
avs->remaining_frame_size = avio_rl16(s->pb) - 4;
}
while (avs->remaining_frame_size > 0) {
sub_type = avio_r8(s->pb);
type = avio_r8(s->pb);
size = avio_rl16(s->pb);
if (size < 4)
return AVERROR_INVALIDDATA;
avs->remaining_frame_size -= size;
switch (type) {
case AVS_PALETTE:
if (size - 4 > sizeof(palette))
return AVERROR_INVALIDDATA;
ret = avio_read(s->pb, palette, size - 4);
if (ret < size - 4)
return AVERROR(EIO);
palette_size = size;
break;
case AVS_VIDEO:
if (!avs->st_video) {
avs->st_video = avformat_new_stream(s, NULL);
if (avs->st_video == NULL)
return AVERROR(ENOMEM);
avs->st_video->codec->codec_type = AVMEDIA_TYPE_VIDEO;
avs->st_video->codec->codec_id = CODEC_ID_AVS;
avs->st_video->codec->width = avs->width;
avs->st_video->codec->height = avs->height;
avs->st_video->codec->bits_per_coded_sample=avs->bits_per_sample;
avs->st_video->nb_frames = avs->nb_frames;
avs->st_video->r_frame_rate = avs->st_video->avg_frame_rate =
(AVRational){avs->fps, 1};
}
return avs_read_video_packet(s, pkt, type, sub_type, size,
palette, palette_size);
case AVS_AUDIO:
if (!avs->st_audio) {
avs->st_audio = avformat_new_stream(s, NULL);
if (avs->st_audio == NULL)
return AVERROR(ENOMEM);
avs->st_audio->codec->codec_type = AVMEDIA_TYPE_AUDIO;
}
avs->remaining_audio_size = size - 4;
size = avs_read_audio_packet(s, pkt);
if (size != 0)
return size;
break;
default:
avio_skip(s->pb, size - 4);
}
}
}
}