static int dxv_decode(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
DXVContext *ctx = avctx->priv_data;
ThreadFrame tframe;
GetByteContext *gbc = &ctx->gbc;
int (*decompress_tex)(AVCodecContext *avctx);
const char *msgcomp, *msgtext;
uint32_t tag;
int version_major, version_minor = 0;
int size = 0, old_type = 0;
int ret;
bytestream2_init(gbc, avpkt->data, avpkt->size);
tag = bytestream2_get_le32(gbc);
switch (tag) {
case MKBETAG('D', 'X', 'T', '1'):
decompress_tex = dxv_decompress_dxt1;
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_rat = 8;
ctx->tex_step = 8;
msgcomp = "DXTR1";
msgtext = "DXT1";
break;
case MKBETAG('D', 'X', 'T', '5'):
decompress_tex = dxv_decompress_dxt5;
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_rat = 4;
ctx->tex_step = 16;
msgcomp = "DXTR5";
msgtext = "DXT5";
break;
case MKBETAG('Y', 'C', 'G', '6'):
case MKBETAG('Y', 'G', '1', '0'):
avpriv_report_missing_feature(avctx, "Tag 0x%08"PRIX32"", tag);
return AVERROR_PATCHWELCOME;
default:
/* Old version does not have a real header, just size and type. */
size = tag & 0x00FFFFFF;
old_type = tag >> 24;
version_major = (old_type & 0x0F) - 1;
if (old_type & 0x80) {
msgcomp = "RAW";
decompress_tex = dxv_decompress_raw;
} else {
msgcomp = "LZF";
decompress_tex = dxv_decompress_lzf;
}
if (old_type & 0x40) {
msgtext = "DXT5";
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_step = 16;
} else if (old_type & 0x20 || version_major == 1) {
msgtext = "DXT1";
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_step = 8;
} else {
av_log(avctx, AV_LOG_ERROR,
"Unsupported header (0x%08"PRIX32")\n.", tag);
return AVERROR_INVALIDDATA;
}
ctx->tex_rat = 1;
break;
}
/* New header is 12 bytes long. */
if (!old_type) {
version_major = bytestream2_get_byte(gbc) - 1;
version_minor = bytestream2_get_byte(gbc);
/* Encoder copies texture data when compression is not advantageous. */
if (bytestream2_get_byte(gbc)) {
msgcomp = "RAW";
ctx->tex_rat = 1;
decompress_tex = dxv_decompress_raw;
}
bytestream2_skip(gbc, 1); // unknown
size = bytestream2_get_le32(gbc);
}
av_log(avctx, AV_LOG_DEBUG,
"%s compression with %s texture (version %d.%d)\n",
msgcomp, msgtext, version_major, version_minor);
if (size != bytestream2_get_bytes_left(gbc)) {
av_log(avctx, AV_LOG_ERROR,
"Incomplete or invalid file (header %d, left %u).\n",
size, bytestream2_get_bytes_left(gbc));
return AVERROR_INVALIDDATA;
}
ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat;
ret = av_reallocp(&ctx->tex_data, ctx->tex_size);
if (ret < 0)
return ret;
/* Decompress texture out of the intermediate compression. */
ret = decompress_tex(avctx);
if (ret < 0)
return ret;
tframe.f = data;
ret = ff_thread_get_buffer(avctx, &tframe, 0);
if (ret < 0)
return ret;
ff_thread_finish_setup(avctx);
/* Now decompress the texture with the standard functions. */
avctx->execute2(avctx, decompress_texture_thread,
tframe.f, NULL, ctx->slice_count);
/* Frame is ready to be output. */
tframe.f->pict_type = AV_PICTURE_TYPE_I;
tframe.f->key_frame = 1;
*got_frame = 1;
return avpkt->size;
}
/**
* @return 0 when a packet was written into /p pkt, and no more data is left;
* 1 when a packet was written into /p pkt, and more packets might be left;
* <0 when not enough data was provided to return a full packet, or on error.
*/
static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
AVStream *st, AVPacket *pkt,
uint32_t *timestamp,
const uint8_t *buf, int len, uint16_t seq,
int flags)
{
AVIOContext *pb = &asf->pb;
int res, mflags, len_off;
RTSPState *rt = s->priv_data;
if (!rt->asf_ctx)
return -1;
if (len > 0) {
int off, out_len = 0;
if (len < 4)
return -1;
av_freep(&asf->buf);
ffio_init_context(pb, (uint8_t *)buf, len, 0, NULL, NULL, NULL, NULL);
while (avio_tell(pb) + 4 < len) {
int start_off = avio_tell(pb);
mflags = avio_r8(pb);
len_off = avio_rb24(pb);
if (mflags & 0x20) /**< relative timestamp */
avio_skip(pb, 4);
if (mflags & 0x10) /**< has duration */
avio_skip(pb, 4);
if (mflags & 0x8) /**< has location ID */
avio_skip(pb, 4);
off = avio_tell(pb);
if (!(mflags & 0x40)) {
/**
* If 0x40 is not set, the len_off field specifies an offset
* of this packet's payload data in the complete (reassembled)
* ASF packet. This is used to spread one ASF packet over
* multiple RTP packets.
*/
if (asf->pktbuf && len_off != avio_tell(asf->pktbuf)) {
ffio_free_dyn_buf(&asf->pktbuf);
}
if (!len_off && !asf->pktbuf &&
(res = avio_open_dyn_buf(&asf->pktbuf)) < 0)
return res;
if (!asf->pktbuf)
return AVERROR(EIO);
avio_write(asf->pktbuf, buf + off, len - off);
avio_skip(pb, len - off);
if (!(flags & RTP_FLAG_MARKER))
return -1;
out_len = avio_close_dyn_buf(asf->pktbuf, &asf->buf);
asf->pktbuf = NULL;
} else {
/**
* If 0x40 is set, the len_off field specifies the length of
* the next ASF packet that can be read from this payload
* data alone. This is commonly the same as the payload size,
* but could be less in case of packet splitting (i.e.
* multiple ASF packets in one RTP packet).
*/
int cur_len = start_off + len_off - off;
int prev_len = out_len;
out_len += cur_len;
if (FFMIN(cur_len, len - off) < 0)
return -1;
if ((res = av_reallocp(&asf->buf, out_len)) < 0)
return res;
memcpy(asf->buf + prev_len, buf + off,
FFMIN(cur_len, len - off));
avio_skip(pb, cur_len);
}
}
init_packetizer(pb, asf->buf, out_len);
pb->pos += rt->asf_pb_pos;
pb->eof_reached = 0;
rt->asf_ctx->pb = pb;
}
for (;;) {
int i;
res = ff_read_packet(rt->asf_ctx, pkt);
rt->asf_pb_pos = avio_tell(pb);
if (res != 0)
break;
for (i = 0; i < s->nb_streams; i++) {
if (s->streams[i]->id == rt->asf_ctx->streams[pkt->stream_index]->id) {
pkt->stream_index = i;
return 1; // FIXME: return 0 if last packet
}
}
av_packet_unref(pkt);
}
return res == 1 ? -1 : res;
}
static av_cold int concat_open(URLContext *h, const char *uri, int flags)
{
char *node_uri = NULL;
int err = 0;
int64_t size;
size_t len, i;
URLContext *uc;
struct concat_data *data = h->priv_data;
struct concat_nodes *nodes;
av_strstart(uri, "concat:", &uri);
for (i = 0, len = 1; uri[i]; i++)
if (uri[i] == *AV_CAT_SEPARATOR)
/* integer overflow */
if (++len == UINT_MAX / sizeof(*nodes)) {
av_freep(&h->priv_data);
return AVERROR(ENAMETOOLONG);
}
if (!(nodes = av_realloc(NULL, sizeof(*nodes) * len))) {
return AVERROR(ENOMEM);
} else
data->nodes = nodes;
/* handle input */
if (!*uri)
err = AVERROR(ENOENT);
for (i = 0; *uri; i++) {
/* parsing uri */
len = strcspn(uri, AV_CAT_SEPARATOR);
if ((err = av_reallocp(&node_uri, len + 1)) < 0)
break;
av_strlcpy(node_uri, uri, len+1);
uri += len + strspn(uri+len, AV_CAT_SEPARATOR);
/* creating URLContext */
if ((err = ffurl_open(&uc, node_uri, flags,
&h->interrupt_callback, NULL)) < 0)
break;
/* creating size */
if ((size = ffurl_size(uc)) < 0) {
ffurl_close(uc);
err = AVERROR(ENOSYS);
break;
}
/* assembling */
nodes[i].uc = uc;
nodes[i].size = size;
}
av_free(node_uri);
data->length = i;
if (err < 0)
concat_close(h);
else if (!(nodes = av_realloc(nodes, data->length * sizeof(*nodes)))) {
concat_close(h);
err = AVERROR(ENOMEM);
} else
data->nodes = nodes;
return err;
}
/* Prepare the texture to be decompressed */
static int setup_texture(AVCodecContext *avctx, size_t length)
{
HapContext *ctx = avctx->priv_data;
GetByteContext *gbc = &ctx->gbc;
int64_t snappy_size;
const char *texture_name;
const char *compressorstr;
int ret;
if ((avctx->codec_tag == MKTAG('H','a','p','1') && (ctx->section_type & 0x0F) != HAP_FMT_RGBDXT1)
|| (avctx->codec_tag == MKTAG('H','a','p','5') && (ctx->section_type & 0x0F) != HAP_FMT_RGBADXT5)
|| (avctx->codec_tag == MKTAG('H','a','p','Y') && (ctx->section_type & 0x0F) != HAP_FMT_YCOCGDXT5))
return AVERROR_INVALIDDATA;
switch (ctx->section_type & 0x0F) {
case HAP_FMT_RGBDXT1:
texture_name = "DXT1";
break;
case HAP_FMT_RGBADXT5:
texture_name = "DXT5";
break;
case HAP_FMT_YCOCGDXT5:
texture_name = "DXT5-YCoCg-scaled";
break;
default:
av_log(avctx, AV_LOG_ERROR,
"Invalid format mode %02X.\n", ctx->section_type);
return AVERROR_INVALIDDATA;
}
switch (ctx->section_type & 0xF0) {
case HAP_COMP_NONE:
/* Only DXTC texture compression */
ctx->tex_data = gbc->buffer;
ctx->tex_size = length;
compressorstr = "none";
break;
case HAP_COMP_SNAPPY:
snappy_size = ff_snappy_peek_uncompressed_length(gbc);
ret = av_reallocp(&ctx->snappied, snappy_size);
if (ret < 0) {
return ret;
}
/* Uncompress the frame */
ret = ff_snappy_uncompress(gbc, ctx->snappied, &snappy_size);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Snappy uncompress error\n");
return ret;
}
ctx->tex_data = ctx->snappied;
ctx->tex_size = snappy_size;
compressorstr = "snappy";
break;
case HAP_COMP_COMPLEX:
compressorstr = "complex";
avpriv_request_sample(avctx, "Complex Hap compressor");
return AVERROR_PATCHWELCOME;
break;
default:
av_log(avctx, AV_LOG_ERROR,
"Invalid compressor mode %02X.\n", ctx->section_type);
return AVERROR_INVALIDDATA;
}
av_log(avctx, AV_LOG_DEBUG, "%s texture with %s compressor\n",
texture_name, compressorstr);
return 0;
}
static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
{
SmackerContext *smk = s->priv_data;
int flags;
int ret;
int i;
int frame_size = 0;
int palchange = 0;
if (avio_feof(s->pb) || smk->cur_frame >= smk->frames)
return AVERROR_EOF;
/* if we demuxed all streams, pass another frame */
if(smk->curstream < 0) {
avio_seek(s->pb, smk->nextpos, 0);
frame_size = smk->frm_size[smk->cur_frame] & (~3);
flags = smk->frm_flags[smk->cur_frame];
/* handle palette change event */
if(flags & SMACKER_PAL){
int size, sz, t, off, j, pos;
uint8_t *pal = smk->pal;
uint8_t oldpal[768];
memcpy(oldpal, pal, 768);
size = avio_r8(s->pb);
size = size * 4 - 1;
if(size + 1 > frame_size)
return AVERROR_INVALIDDATA;
frame_size -= size;
frame_size--;
sz = 0;
pos = avio_tell(s->pb) + size;
while(sz < 256){
t = avio_r8(s->pb);
if(t & 0x80){ /* skip palette entries */
sz += (t & 0x7F) + 1;
pal += ((t & 0x7F) + 1) * 3;
} else if(t & 0x40){ /* copy with offset */
off = avio_r8(s->pb);
j = (t & 0x3F) + 1;
if (off + j > 0x100) {
av_log(s, AV_LOG_ERROR,
"Invalid palette update, offset=%d length=%d extends beyond palette size\n",
off, j);
return AVERROR_INVALIDDATA;
}
off *= 3;
while(j-- && sz < 256) {
*pal++ = oldpal[off + 0];
*pal++ = oldpal[off + 1];
*pal++ = oldpal[off + 2];
sz++;
off += 3;
}
} else { /* new entries */
*pal++ = smk_pal[t];
*pal++ = smk_pal[avio_r8(s->pb) & 0x3F];
*pal++ = smk_pal[avio_r8(s->pb) & 0x3F];
sz++;
}
}
avio_seek(s->pb, pos, 0);
palchange |= 1;
}
flags >>= 1;
smk->curstream = -1;
/* if audio chunks are present, put them to stack and retrieve later */
for(i = 0; i < 7; i++) {
if(flags & 1) {
uint32_t size;
int err;
size = avio_rl32(s->pb) - 4;
if (!size || size + 4LL > frame_size) {
av_log(s, AV_LOG_ERROR, "Invalid audio part size\n");
return AVERROR_INVALIDDATA;
}
frame_size -= size;
frame_size -= 4;
smk->curstream++;
if ((err = av_reallocp(&smk->bufs[smk->curstream], size)) < 0) {
smk->buf_sizes[smk->curstream] = 0;
return err;
}
smk->buf_sizes[smk->curstream] = size;
ret = avio_read(s->pb, smk->bufs[smk->curstream], size);
if(ret != size)
return AVERROR(EIO);
smk->stream_id[smk->curstream] = smk->indexes[i];
}
flags >>= 1;
}
if (frame_size < 0 || frame_size >= INT_MAX/2)
return AVERROR_INVALIDDATA;
if (av_new_packet(pkt, frame_size + 769))
return AVERROR(ENOMEM);
if(smk->frm_size[smk->cur_frame] & 1)
palchange |= 2;
pkt->data[0] = palchange;
memcpy(pkt->data + 1, smk->pal, 768);
ret = avio_read(s->pb, pkt->data + 769, frame_size);
if(ret != frame_size)
return AVERROR(EIO);
pkt->stream_index = smk->videoindex;
pkt->pts = smk->cur_frame;
pkt->size = ret + 769;
smk->cur_frame++;
smk->nextpos = avio_tell(s->pb);
} else {
static int h264_extradata_to_annexb(H264BSFContext *ctx, AVCodecContext *avctx, const int padding)
{
uint16_t unit_size;
uint64_t total_size = 0;
uint8_t *out = NULL, unit_nb, sps_done = 0,
sps_seen = 0, pps_seen = 0;
const uint8_t *extradata = avctx->extradata + 4;
static const uint8_t nalu_header[4] = { 0, 0, 0, 1 };
int length_size = (*extradata++ & 0x3) + 1; // retrieve length coded size
ctx->sps_offset = ctx->pps_offset = -1;
/* retrieve sps and pps unit(s) */
unit_nb = *extradata++ & 0x1f; /* number of sps unit(s) */
if (!unit_nb) {
goto pps;
} else {
ctx->sps_offset = 0;
sps_seen = 1;
}
while (unit_nb--) {
int err;
unit_size = AV_RB16(extradata);
total_size += unit_size + 4;
if (total_size > INT_MAX - padding) {
av_log(avctx, AV_LOG_ERROR,
"Too big extradata size, corrupted stream or invalid MP4/AVCC bitstream\n");
av_free(out);
return AVERROR(EINVAL);
}
if (extradata + 2 + unit_size > avctx->extradata + avctx->extradata_size) {
av_log(avctx, AV_LOG_ERROR, "Packet header is not contained in global extradata, "
"corrupted stream or invalid MP4/AVCC bitstream\n");
av_free(out);
return AVERROR(EINVAL);
}
if ((err = av_reallocp(&out, total_size + padding)) < 0)
return err;
memcpy(out + total_size - unit_size - 4, nalu_header, 4);
memcpy(out + total_size - unit_size, extradata + 2, unit_size);
extradata += 2 + unit_size;
pps:
if (!unit_nb && !sps_done++) {
unit_nb = *extradata++; /* number of pps unit(s) */
if (unit_nb) {
ctx->pps_offset = (extradata - 1) - (avctx->extradata + 4);
pps_seen = 1;
}
}
}
if (out)
memset(out + total_size, 0, padding);
if (!sps_seen)
av_log(avctx, AV_LOG_WARNING,
"Warning: SPS NALU missing or invalid. "
"The resulting stream may not play.\n");
if (!pps_seen)
av_log(avctx, AV_LOG_WARNING,
"Warning: PPS NALU missing or invalid. "
"The resulting stream may not play.\n");
if (!ctx->private_spspps) {
av_free(avctx->extradata);
avctx->extradata = out;
avctx->extradata_size = total_size;
}
ctx->spspps_buf = out;
ctx->spspps_size = total_size;
return length_size;
}
/** Read incoming MMST media, header or command packet. */
static MMSSCPacketType get_tcp_server_response(MMSTContext *mmst)
{
int read_result;
MMSSCPacketType packet_type= -1;
MMSContext *mms = &mmst->mms;
for(;;) {
read_result = ffurl_read_complete(mms->mms_hd, mms->in_buffer, 8);
if (read_result != 8) {
if(read_result < 0) {
av_log(NULL, AV_LOG_ERROR,
"Error reading packet header: %d (%s)\n",
read_result, strerror(AVUNERROR(read_result)));
packet_type = SC_PKT_CANCEL;
} else {
av_log(NULL, AV_LOG_ERROR,
"The server closed the connection\n");
packet_type = SC_PKT_NO_DATA;
}
return packet_type;
}
// handle command packet.
if(AV_RL32(mms->in_buffer + 4)==0xb00bface) {
int length_remaining, hr;
mmst->incoming_flags= mms->in_buffer[3];
read_result= ffurl_read_complete(mms->mms_hd, mms->in_buffer+8, 4);
if(read_result != 4) {
av_log(NULL, AV_LOG_ERROR,
"Reading command packet length failed: %d (%s)\n",
read_result,
read_result < 0 ? strerror(AVUNERROR(read_result)) :
"The server closed the connection");
return read_result < 0 ? read_result : AVERROR(EIO);
}
length_remaining= AV_RL32(mms->in_buffer+8) + 4;
av_log(NULL, AV_LOG_TRACE, "Length remaining is %d\n", length_remaining);
// read the rest of the packet.
if (length_remaining < 0
|| length_remaining > sizeof(mms->in_buffer) - 12) {
av_log(NULL, AV_LOG_ERROR,
"Incoming packet length %d exceeds bufsize %"SIZE_SPECIFIER"\n",
length_remaining, sizeof(mms->in_buffer) - 12);
return AVERROR_INVALIDDATA;
}
read_result = ffurl_read_complete(mms->mms_hd, mms->in_buffer + 12,
length_remaining) ;
if (read_result != length_remaining) {
av_log(NULL, AV_LOG_ERROR,
"Reading pkt data (length=%d) failed: %d (%s)\n",
length_remaining, read_result,
read_result < 0 ? strerror(AVUNERROR(read_result)) :
"The server closed the connection");
return read_result < 0 ? read_result : AVERROR(EIO);
}
packet_type= AV_RL16(mms->in_buffer+36);
if (read_result >= 44 && (hr = AV_RL32(mms->in_buffer + 40))) {
av_log(NULL, AV_LOG_ERROR,
"Server sent a message with packet type 0x%x and error status code 0x%08x\n", packet_type, hr);
return AVERROR(EINVAL);
}
} else {
int length_remaining;
int packet_id_type;
int tmp;
// note we cache the first 8 bytes,
// then fill up the buffer with the others
tmp = AV_RL16(mms->in_buffer + 6);
length_remaining = (tmp - 8) & 0xffff;
mmst->incoming_packet_seq = AV_RL32(mms->in_buffer);
packet_id_type = mms->in_buffer[4];
mmst->incoming_flags = mms->in_buffer[5];
if (length_remaining < 0
|| length_remaining > sizeof(mms->in_buffer) - 8) {
av_log(NULL, AV_LOG_ERROR,
"Data length %d is invalid or too large (max=%"SIZE_SPECIFIER")\n",
length_remaining, sizeof(mms->in_buffer));
return AVERROR_INVALIDDATA;
}
mms->remaining_in_len = length_remaining;
mms->read_in_ptr = mms->in_buffer;
read_result= ffurl_read_complete(mms->mms_hd, mms->in_buffer, length_remaining);
if(read_result != length_remaining) {
av_log(NULL, AV_LOG_ERROR,
"Failed to read packet data of size %d: %d (%s)\n",
length_remaining, read_result,
read_result < 0 ? strerror(AVUNERROR(read_result)) :
"The server closed the connection");
return read_result < 0 ? read_result : AVERROR(EIO);
}
// if we successfully read everything.
if(packet_id_type == mmst->header_packet_id) {
int err;
packet_type = SC_PKT_ASF_HEADER;
// Store the asf header
if(!mms->header_parsed) {
if ((err = av_reallocp(&mms->asf_header,
mms->asf_header_size +
mms->remaining_in_len)) < 0) {
mms->asf_header_size = 0;
return err;
}
memcpy(mms->asf_header + mms->asf_header_size,
mms->read_in_ptr, mms->remaining_in_len);
mms->asf_header_size += mms->remaining_in_len;
}
// 0x04 means asf header is sent in multiple packets.
if (mmst->incoming_flags == 0x04)
continue;
} else if(packet_id_type == mmst->packet_id) {
packet_type = SC_PKT_ASF_MEDIA;
} else {
av_log(NULL, AV_LOG_TRACE, "packet id type %d is old.", packet_id_type);
continue;
}
}
// preprocess some packet type
if(packet_type == SC_PKT_KEEPALIVE) {
send_keepalive_packet(mmst);
continue;
} else if(packet_type == SC_PKT_STREAM_CHANGING) {
handle_packet_stream_changing_type(mmst);
} else if(packet_type == SC_PKT_ASF_MEDIA) {
pad_media_packet(mms);
}
return packet_type;
}
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
unsigned char tag[5];
unsigned int flags = 0;
const int stream_index = pkt->stream_index;
int size = pkt->size;
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
AVIStream *avist = s->streams[stream_index]->priv_data;
AVCodecContext *enc = s->streams[stream_index]->codec;
while (enc->block_align == 0 && pkt->dts != AV_NOPTS_VALUE &&
pkt->dts > avist->packet_count) {
AVPacket empty_packet;
av_init_packet(&empty_packet);
empty_packet.size = 0;
empty_packet.data = NULL;
empty_packet.stream_index = stream_index;
avi_write_packet(s, &empty_packet);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if (pkt->flags & AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
avist->audio_strm_length += size;
if (s->pb->seekable) {
int err;
AVIIndex *idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
if ((err = av_reallocp(&idx->cluster,
(cl + 1) * sizeof(*idx->cluster))) < 0) {
idx->ents_allocated = 0;
idx->entry = 0;
return err;
}
idx->cluster[cl] =
av_malloc(AVI_INDEX_CLUSTER_SIZE * sizeof(AVIIentry));
if (!idx->cluster[cl])
return -1;
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
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;
}
int av_probe_input_buffer(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;
uint8_t *mime_type_opt = NULL;
if (!max_probe_size)
max_probe_size = PROBE_BUF_MAX;
else if (max_probe_size > PROBE_BUF_MAX)
max_probe_size = PROBE_BUF_MAX;
else if (max_probe_size < PROBE_BUF_MIN)
return AVERROR(EINVAL);
if (offset >= max_probe_size)
return AVERROR(EINVAL);
avio_skip(pb, offset);
max_probe_size -= offset;
if (pb->av_class) {
av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type_opt);
pd.mime_type = (const char *)mime_type_opt;
mime_type_opt = NULL;
}
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))) {
int score = probe_size < max_probe_size ? AVPROBE_SCORE_MAX / 4 : 0;
/* Read probe data. */
if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)
goto fail;
if ((ret = avio_read(pb, buf + pd.buf_size,
probe_size - pd.buf_size)) < 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 */
}
pd.buf_size += ret;
pd.buf = buf;
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_MAX / 4) {
av_log(logctx, AV_LOG_WARNING,
"Format detected only with low score of %d, "
"misdetection possible!\n", score);
} else
av_log(logctx, AV_LOG_DEBUG,
"Probed with size=%d and score=%d\n", probe_size, score);
}
}
if (!*fmt)
ret = AVERROR_INVALIDDATA;
fail:
/* Rewind. Reuse probe buffer to avoid seeking. */
if (ret < 0 ||
(ret = ffio_rewind_with_probe_data(pb, buf, pd.buf_size)) < 0) {
av_free(buf);
}
av_freep(&pd.mime_type);
return ret;
}
static int screenpresso_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
ScreenpressoContext *ctx = avctx->priv_data;
AVFrame *frame = data;
int keyframe;
int ret;
/* Size check */
if (avpkt->size < 3) {
av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size);
return AVERROR_INVALIDDATA;
}
/* Basic sanity check, but not really harmful */
if ((avpkt->data[0] != 0x73 && avpkt->data[0] != 0x72) ||
avpkt->data[1] != 8) { // bpp probably
av_log(avctx, AV_LOG_WARNING, "Unknown header 0x%02X%02X\n",
avpkt->data[0], avpkt->data[1]);
}
keyframe = (avpkt->data[0] == 0x73);
/* Resize deflate buffer and frame on resolution change */
if (ctx->inflated_size != avctx->width * avctx->height * 3) {
av_frame_unref(ctx->current);
ret = ff_get_buffer(avctx, ctx->current, AV_GET_BUFFER_FLAG_REF);
if (ret < 0)
return ret;
/* If malloc fails, reset len to avoid preserving an invalid value */
ctx->inflated_size = avctx->width * avctx->height * 3;
ret = av_reallocp(&ctx->inflated_buf, ctx->inflated_size);
if (ret < 0) {
ctx->inflated_size = 0;
return ret;
}
}
/* Inflate the frame after the 2 byte header */
ret = uncompress(ctx->inflated_buf, &ctx->inflated_size,
avpkt->data + 2, avpkt->size - 2);
if (ret) {
av_log(avctx, AV_LOG_ERROR, "Deflate error %d.\n", ret);
return AVERROR_UNKNOWN;
}
/* When a keyframe is found, copy it (flipped) */
if (keyframe)
av_image_copy_plane(ctx->current->data[0] +
ctx->current->linesize[0] * (avctx->height - 1),
-1 * ctx->current->linesize[0],
ctx->inflated_buf, avctx->width * 3,
avctx->width * 3, avctx->height);
/* Otherwise sum the delta on top of the current frame */
else
sum_delta_flipped(ctx->current->data[0], ctx->current->linesize[0],
ctx->inflated_buf, avctx->width * 3,
avctx->width * 3, avctx->height);
/* Frame is ready to be output */
ret = av_frame_ref(frame, ctx->current);
if (ret < 0)
return ret;
/* Usual properties */
if (keyframe) {
frame->pict_type = AV_PICTURE_TYPE_I;
frame->key_frame = 1;
} else {
frame->pict_type = AV_PICTURE_TYPE_P;
}
*got_frame = 1;
return 0;
}
static int h264_extradata_to_annexb_sps_pps(AVCodecContext *avctx,
uint8_t **extradata_annexb, int *extradata_annexb_size,
int *sps_offset, int *sps_size,
int *pps_offset, int *pps_size)
{
uint16_t unit_size;
uint64_t total_size = 0;
uint8_t i, j, unit_nb;
uint8_t sps_seen = 0;
uint8_t pps_seen = 0;
const uint8_t *extradata;
static const uint8_t nalu_header[4] = { 0x00, 0x00, 0x00, 0x01 };
if (avctx->extradata_size < 8) {
av_log(avctx, AV_LOG_ERROR,
"Too small extradata size, corrupted stream or invalid MP4/AVCC bitstream\n");
return AVERROR(EINVAL);
}
*extradata_annexb = NULL;
*extradata_annexb_size = 0;
*sps_offset = *sps_size = 0;
*pps_offset = *pps_size = 0;
extradata = avctx->extradata + 4;
/* skip length size */
extradata++;
for (j = 0; j < 2; j ++) {
if (j == 0) {
/* number of sps unit(s) */
unit_nb = *extradata++ & 0x1f;
} else {
/* number of pps unit(s) */
unit_nb = *extradata++;
}
for (i = 0; i < unit_nb; i++) {
int err;
unit_size = AV_RB16(extradata);
total_size += unit_size + 4;
if (total_size > INT_MAX) {
av_log(avctx, AV_LOG_ERROR,
"Too big extradata size, corrupted stream or invalid MP4/AVCC bitstream\n");
av_freep(extradata_annexb);
return AVERROR(EINVAL);
}
if (extradata + 2 + unit_size > avctx->extradata + avctx->extradata_size) {
av_log(avctx, AV_LOG_ERROR, "Packet header is not contained in global extradata, "
"corrupted stream or invalid MP4/AVCC bitstream\n");
av_freep(extradata_annexb);
return AVERROR(EINVAL);
}
if ((err = av_reallocp(extradata_annexb, total_size)) < 0) {
return err;
}
memcpy(*extradata_annexb + total_size - unit_size - 4, nalu_header, 4);
memcpy(*extradata_annexb + total_size - unit_size, extradata + 2, unit_size);
extradata += 2 + unit_size;
}
if (unit_nb) {
if (j == 0) {
sps_seen = 1;
*sps_size = total_size;
} else {
pps_seen = 1;
*pps_size = total_size - *sps_size;
*pps_offset = *sps_size;
}
}
}
*extradata_annexb_size = total_size;
if (!sps_seen)
av_log(avctx, AV_LOG_WARNING,
"Warning: SPS NALU missing or invalid. "
"The resulting stream may not play.\n");
if (!pps_seen)
av_log(avctx, AV_LOG_WARNING,
"Warning: PPS NALU missing or invalid. "
"The resulting stream may not play.\n");
return 0;
}
static int libschroedinger_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *frame, int *got_packet)
{
int enc_size = 0;
SchroEncoderParams *p_schro_params = avctx->priv_data;
SchroEncoder *encoder = p_schro_params->encoder;
struct FFSchroEncodedFrame *p_frame_output = NULL;
int go = 1;
SchroBuffer *enc_buf;
int presentation_frame;
int parse_code;
int last_frame_in_sequence = 0;
int pkt_size, ret;
if (!frame) {
/* Push end of sequence if not already signalled. */
if (!p_schro_params->eos_signalled) {
schro_encoder_end_of_stream(encoder);
p_schro_params->eos_signalled = 1;
}
} else {
/* Allocate frame data to schro input buffer. */
SchroFrame *in_frame = libschroedinger_frame_from_data(avctx, frame);
if (!in_frame)
return AVERROR(ENOMEM);
/* Load next frame. */
schro_encoder_push_frame(encoder, in_frame);
}
if (p_schro_params->eos_pulled)
go = 0;
/* Now check to see if we have any output from the encoder. */
while (go) {
int err;
SchroStateEnum state;
state = schro_encoder_wait(encoder);
switch (state) {
case SCHRO_STATE_HAVE_BUFFER:
case SCHRO_STATE_END_OF_STREAM:
enc_buf = schro_encoder_pull(encoder, &presentation_frame);
if (enc_buf->length <= 0)
return AVERROR_BUG;
parse_code = enc_buf->data[4];
/* All non-frame data is prepended to actual frame data to
* be able to set the pts correctly. So we don't write data
* to the frame output queue until we actually have a frame
*/
if ((err = av_reallocp(&p_schro_params->enc_buf,
p_schro_params->enc_buf_size +
enc_buf->length)) < 0) {
p_schro_params->enc_buf_size = 0;
return err;
}
memcpy(p_schro_params->enc_buf + p_schro_params->enc_buf_size,
enc_buf->data, enc_buf->length);
p_schro_params->enc_buf_size += enc_buf->length;
if (state == SCHRO_STATE_END_OF_STREAM) {
p_schro_params->eos_pulled = 1;
go = 0;
}
if (!SCHRO_PARSE_CODE_IS_PICTURE(parse_code)) {
schro_buffer_unref(enc_buf);
break;
}
/* Create output frame. */
p_frame_output = av_mallocz(sizeof(FFSchroEncodedFrame));
if (!p_frame_output)
return AVERROR(ENOMEM);
/* Set output data. */
p_frame_output->size = p_schro_params->enc_buf_size;
p_frame_output->p_encbuf = p_schro_params->enc_buf;
if (SCHRO_PARSE_CODE_IS_INTRA(parse_code) &&
SCHRO_PARSE_CODE_IS_REFERENCE(parse_code))
p_frame_output->key_frame = 1;
/* Parse the coded frame number from the bitstream. Bytes 14
* through 17 represesent the frame number. */
p_frame_output->frame_num = AV_RB32(enc_buf->data + 13);
ff_schro_queue_push_back(&p_schro_params->enc_frame_queue,
p_frame_output);
p_schro_params->enc_buf_size = 0;
p_schro_params->enc_buf = NULL;
schro_buffer_unref(enc_buf);
break;
case SCHRO_STATE_NEED_FRAME:
go = 0;
break;
case SCHRO_STATE_AGAIN:
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown Schro Encoder state\n");
return -1;
}
}
/* Copy 'next' frame in queue. */
if (p_schro_params->enc_frame_queue.size == 1 &&
p_schro_params->eos_pulled)
last_frame_in_sequence = 1;
p_frame_output = ff_schro_queue_pop(&p_schro_params->enc_frame_queue);
if (!p_frame_output)
return 0;
pkt_size = p_frame_output->size;
if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0)
pkt_size += p_schro_params->enc_buf_size;
if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size)) < 0)
goto error;
memcpy(pkt->data, p_frame_output->p_encbuf, p_frame_output->size);
avctx->coded_frame->key_frame = p_frame_output->key_frame;
/* Use the frame number of the encoded frame as the pts. It is OK to
* do so since Dirac is a constant frame rate codec. It expects input
* to be of constant frame rate. */
pkt->pts =
avctx->coded_frame->pts = p_frame_output->frame_num;
pkt->dts = p_schro_params->dts++;
enc_size = p_frame_output->size;
/* Append the end of sequence information to the last frame in the
* sequence. */
if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0) {
memcpy(pkt->data + enc_size, p_schro_params->enc_buf,
p_schro_params->enc_buf_size);
enc_size += p_schro_params->enc_buf_size;
av_freep(&p_schro_params->enc_buf);
p_schro_params->enc_buf_size = 0;
}
if (p_frame_output->key_frame)
pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;
error:
/* free frame */
libschroedinger_free_frame(p_frame_output);
return ret;
}
static int dxv_decode(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
DXVContext *ctx = avctx->priv_data;
ThreadFrame tframe;
GetByteContext *gbc = &ctx->gbc;
int (*decompress_tex)(AVCodecContext *avctx);
uint32_t tag;
int channels, size = 0, old_type = 0;
int ret;
bytestream2_init(gbc, avpkt->data, avpkt->size);
tag = bytestream2_get_le32(gbc);
switch (tag) {
case MKBETAG('D', 'X', 'T', '1'):
decompress_tex = dxv_decompress_dxt1;
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_rat = 8;
ctx->tex_step = 8;
av_log(avctx, AV_LOG_DEBUG, "DXTR1 compression and DXT1 texture ");
break;
case MKBETAG('D', 'X', 'T', '5'):
decompress_tex = dxv_decompress_dxt5;
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_rat = 4;
ctx->tex_step = 16;
av_log(avctx, AV_LOG_DEBUG, "DXTR5 compression and DXT5 texture ");
break;
case MKBETAG('Y', 'C', 'G', '6'):
case MKBETAG('Y', 'G', '1', '0'):
avpriv_report_missing_feature(avctx, "Tag 0x%08X", tag);
return AVERROR_PATCHWELCOME;
default:
/* Old version does not have a real header, just size and type. */
size = tag & 0x00FFFFFF;
old_type = tag >> 24;
channels = old_type & 0x0F;
if (old_type & 0x40) {
av_log(avctx, AV_LOG_DEBUG, "LZF compression and DXT5 texture ");
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_step = 16;
} else if (old_type & 0x20) {
av_log(avctx, AV_LOG_DEBUG, "LZF compression and DXT1 texture ");
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_step = 8;
} else {
av_log(avctx, AV_LOG_ERROR, "Unsupported header (0x%08X)\n.", tag);
return AVERROR_INVALIDDATA;
}
decompress_tex = dxv_decompress_lzf;
ctx->tex_rat = 1;
break;
}
/* New header is 12 bytes long. */
if (!old_type) {
channels = bytestream2_get_byte(gbc);
bytestream2_skip(gbc, 3); // unknown
size = bytestream2_get_le32(gbc);
}
av_log(avctx, AV_LOG_DEBUG, "(%d channels)\n", channels);
if (size != bytestream2_get_bytes_left(gbc)) {
av_log(avctx, AV_LOG_ERROR, "Incomplete or invalid file (%u > %u)\n.",
size, bytestream2_get_bytes_left(gbc));
return AVERROR_INVALIDDATA;
}
ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat;
ret = av_reallocp(&ctx->tex_data, ctx->tex_size);
if (ret < 0)
return ret;
/* Decompress texture out of the intermediate compression. */
ret = decompress_tex(avctx);
if (ret < 0)
return ret;
tframe.f = data;
ret = ff_thread_get_buffer(avctx, &tframe, 0);
if (ret < 0)
return ret;
ff_thread_finish_setup(avctx);
/* Now decompress the texture with the standard functions. */
avctx->execute2(avctx, decompress_texture_thread,
tframe.f, NULL, ctx->slice_count);
/* Frame is ready to be output. */
tframe.f->pict_type = AV_PICTURE_TYPE_I;
tframe.f->key_frame = 1;
*got_frame = 1;
return avpkt->size;
}
static int h264_extradata_to_annexb(AVBSFContext *ctx, const int padding)
{
uint16_t unit_size;
uint64_t total_size = 0;
uint8_t *out = NULL, unit_nb, sps_done = 0,
sps_seen = 0, pps_seen = 0;
const uint8_t *extradata = ctx->par_in->extradata + 4;
static const uint8_t nalu_header[4] = { 0, 0, 0, 1 };
int length_size = (*extradata++ & 0x3) + 1; // retrieve length coded size
if (length_size == 3)
return AVERROR(EINVAL);
/* retrieve sps and pps unit(s) */
unit_nb = *extradata++ & 0x1f; /* number of sps unit(s) */
if (!unit_nb) {
unit_nb = *extradata++; /* number of pps unit(s) */
sps_done++;
if (unit_nb)
pps_seen = 1;
} else {
sps_seen = 1;
}
while (unit_nb--) {
int err;
unit_size = AV_RB16(extradata);
total_size += unit_size + 4;
if (total_size > INT_MAX - padding ||
extradata + 2 + unit_size > ctx->par_in->extradata +
ctx->par_in->extradata_size) {
av_free(out);
return AVERROR(EINVAL);
}
if ((err = av_reallocp(&out, total_size + padding)) < 0)
return err;
memcpy(out + total_size - unit_size - 4, nalu_header, 4);
memcpy(out + total_size - unit_size, extradata + 2, unit_size);
extradata += 2 + unit_size;
if (!unit_nb && !sps_done++) {
unit_nb = *extradata++; /* number of pps unit(s) */
if (unit_nb)
pps_seen = 1;
}
}
if (out)
memset(out + total_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
if (!sps_seen)
av_log(ctx, AV_LOG_WARNING,
"Warning: SPS NALU missing or invalid. "
"The resulting stream may not play.\n");
if (!pps_seen)
av_log(ctx, AV_LOG_WARNING,
"Warning: PPS NALU missing or invalid. "
"The resulting stream may not play.\n");
av_freep(&ctx->par_out->extradata);
ctx->par_out->extradata = out;
ctx->par_out->extradata_size = total_size;
return length_size;
}
static int hap_decode(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
HapContext *ctx = avctx->priv_data;
ThreadFrame tframe;
int ret, i;
int tex_size;
bytestream2_init(&ctx->gbc, avpkt->data, avpkt->size);
/* Check for section header */
ret = hap_parse_frame_header(avctx);
if (ret < 0)
return ret;
/* Get the output frame ready to receive data */
tframe.f = data;
ret = ff_thread_get_buffer(avctx, &tframe, 0);
if (ret < 0)
return ret;
if (avctx->codec->update_thread_context)
ff_thread_finish_setup(avctx);
/* Unpack the DXT texture */
if (hap_can_use_tex_in_place(ctx)) {
/* Only DXTC texture compression in a contiguous block */
ctx->tex_data = ctx->gbc.buffer;
tex_size = bytestream2_get_bytes_left(&ctx->gbc);
} else {
/* Perform the second-stage decompression */
ret = av_reallocp(&ctx->tex_buf, ctx->tex_size);
if (ret < 0)
return ret;
avctx->execute2(avctx, decompress_chunks_thread, NULL,
ctx->chunk_results, ctx->chunk_count);
for (i = 0; i < ctx->chunk_count; i++) {
if (ctx->chunk_results[i] < 0)
return ctx->chunk_results[i];
}
ctx->tex_data = ctx->tex_buf;
tex_size = ctx->tex_size;
}
if (tex_size < (avctx->coded_width / TEXTURE_BLOCK_W)
*(avctx->coded_height / TEXTURE_BLOCK_H)
*ctx->tex_rat) {
av_log(avctx, AV_LOG_ERROR, "Insufficient data\n");
return AVERROR_INVALIDDATA;
}
/* Use the decompress function on the texture, one block per thread */
avctx->execute2(avctx, decompress_texture_thread, tframe.f, NULL, ctx->slice_count);
/* Frame is ready to be output */
tframe.f->pict_type = AV_PICTURE_TYPE_I;
tframe.f->key_frame = 1;
*got_frame = 1;
return avpkt->size;
}
