mask = (1 << nbits) - 1;
put_bits(pb, 4, nbits - 2); /* 16 bits precision */
if (dx == 0) {
- put_bits(pb, 1, 0);
- put_bits(pb, 1, 1);
- put_bits(pb, nbits, dy & mask);
+ put_bits(pb, 1, 0);
+ put_bits(pb, 1, 1);
+ put_bits(pb, nbits, dy & mask);
} else if (dy == 0) {
- put_bits(pb, 1, 0);
- put_bits(pb, 1, 0);
- put_bits(pb, nbits, dx & mask);
+ put_bits(pb, 1, 0);
+ put_bits(pb, 1, 0);
+ put_bits(pb, nbits, dx & mask);
} else {
- put_bits(pb, 1, 1);
- put_bits(pb, nbits, dx & mask);
- put_bits(pb, nbits, dy & mask);
+ put_bits(pb, 1, 1);
+ put_bits(pb, nbits, dx & mask);
+ put_bits(pb, nbits, dy & mask);
}
}
}
if (!video_enc) {
- /* currenty, cannot work correctly if audio only */
+ /* currently, cannot work correctly if audio only */
swf->video_type = 0;
width = 320;
height = 200;
put_le16(pb, BITMAP_ID); /* bitmap ID */
/* position of the bitmap */
put_swf_matrix(pb, (int)(1.0 * (1 << FRAC_BITS)), 0,
- 0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0);
+ 0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0);
put_byte(pb, 0); /* no line style */
/* shape drawing */
break;
default:
/* not supported */
- av_log(s, AV_LOG_ERROR, "swf doesnt support that sample rate, choose from (44100, 22050, 11025)\n");
+ av_log(s, AV_LOG_ERROR, "swf does not support that sample rate, choose from (44100, 22050, 11025).\n");
return -1;
}
v |= 0x02; /* 16 bit playback */
av_log(enc, AV_LOG_INFO, "warning: Flash Player limit of 16000 frames reached\n");
}
- if ( swf->video_type == CODEC_ID_VP6F ||
- swf->video_type == CODEC_ID_FLV1 ) {
- if ( swf->video_frame_number == 0 ) {
- /* create a new video object */
- put_swf_tag(s, TAG_VIDEOSTREAM);
- put_le16(pb, VIDEO_ID);
- put_le16(pb, 15000 ); /* hard flash player limit */
- put_le16(pb, enc->width);
- put_le16(pb, enc->height);
- put_byte(pb, 0);
- put_byte(pb,codec_get_tag(swf_codec_tags,swf->video_type));
- put_swf_end_tag(s);
-
- /* place the video object for the first time */
- put_swf_tag(s, TAG_PLACEOBJECT2);
- put_byte(pb, 0x36);
- put_le16(pb, 1);
- put_le16(pb, VIDEO_ID);
- put_swf_matrix(pb, 1 << FRAC_BITS, 0, 0, 1 << FRAC_BITS, 0, 0);
- put_le16(pb, swf->video_frame_number );
- put_byte(pb, 'v');
- put_byte(pb, 'i');
- put_byte(pb, 'd');
- put_byte(pb, 'e');
- put_byte(pb, 'o');
- put_byte(pb, 0x00);
- put_swf_end_tag(s);
- } else {
- /* mark the character for update */
- put_swf_tag(s, TAG_PLACEOBJECT2);
- put_byte(pb, 0x11);
- put_le16(pb, 1);
- put_le16(pb, swf->video_frame_number );
- put_swf_end_tag(s);
- }
+ if ( swf->video_type == CODEC_ID_VP6F ||
+ swf->video_type == CODEC_ID_FLV1 ) {
+ if ( swf->video_frame_number == 0 ) {
+ /* create a new video object */
+ put_swf_tag(s, TAG_VIDEOSTREAM);
+ put_le16(pb, VIDEO_ID);
+ put_le16(pb, 15000 ); /* hard flash player limit */
+ put_le16(pb, enc->width);
+ put_le16(pb, enc->height);
+ put_byte(pb, 0);
+ put_byte(pb,codec_get_tag(swf_codec_tags,swf->video_type));
+ put_swf_end_tag(s);
+
+ /* place the video object for the first time */
+ put_swf_tag(s, TAG_PLACEOBJECT2);
+ put_byte(pb, 0x36);
+ put_le16(pb, 1);
+ put_le16(pb, VIDEO_ID);
+ put_swf_matrix(pb, 1 << FRAC_BITS, 0, 0, 1 << FRAC_BITS, 0, 0);
+ put_le16(pb, swf->video_frame_number );
+ put_byte(pb, 'v');
+ put_byte(pb, 'i');
+ put_byte(pb, 'd');
+ put_byte(pb, 'e');
+ put_byte(pb, 'o');
+ put_byte(pb, 0x00);
+ put_swf_end_tag(s);
+ } else {
+ /* mark the character for update */
+ put_swf_tag(s, TAG_PLACEOBJECT2);
+ put_byte(pb, 0x11);
+ put_le16(pb, 1);
+ put_le16(pb, swf->video_frame_number );
+ put_swf_end_tag(s);
+ }
- /* set video frame data */
- put_swf_tag(s, TAG_VIDEOFRAME | TAG_LONG);
- put_le16(pb, VIDEO_ID);
- put_le16(pb, swf->video_frame_number++ );
- put_buffer(pb, buf, size);
- put_swf_end_tag(s);
- } else if ( swf->video_type == CODEC_ID_MJPEG ) {
- if (swf->swf_frame_number > 0) {
- /* remove the shape */
- put_swf_tag(s, TAG_REMOVEOBJECT);
- put_le16(pb, SHAPE_ID); /* shape ID */
- put_le16(pb, 1); /* depth */
- put_swf_end_tag(s);
-
- /* free the bitmap */
- put_swf_tag(s, TAG_FREECHARACTER);
- put_le16(pb, BITMAP_ID);
- put_swf_end_tag(s);
- }
+ /* set video frame data */
+ put_swf_tag(s, TAG_VIDEOFRAME | TAG_LONG);
+ put_le16(pb, VIDEO_ID);
+ put_le16(pb, swf->video_frame_number++ );
+ put_buffer(pb, buf, size);
+ put_swf_end_tag(s);
+ } else if ( swf->video_type == CODEC_ID_MJPEG ) {
+ if (swf->swf_frame_number > 0) {
+ /* remove the shape */
+ put_swf_tag(s, TAG_REMOVEOBJECT);
+ put_le16(pb, SHAPE_ID); /* shape ID */
+ put_le16(pb, 1); /* depth */
+ put_swf_end_tag(s);
+
+ /* free the bitmap */
+ put_swf_tag(s, TAG_FREECHARACTER);
+ put_le16(pb, BITMAP_ID);
+ put_swf_end_tag(s);
+ }
- put_swf_tag(s, TAG_JPEG2 | TAG_LONG);
+ put_swf_tag(s, TAG_JPEG2 | TAG_LONG);
- put_le16(pb, BITMAP_ID); /* ID of the image */
+ put_le16(pb, BITMAP_ID); /* ID of the image */
- /* a dummy jpeg header seems to be required */
- put_byte(pb, 0xff);
- put_byte(pb, 0xd8);
- put_byte(pb, 0xff);
- put_byte(pb, 0xd9);
- /* write the jpeg image */
- put_buffer(pb, buf, size);
+ /* a dummy jpeg header seems to be required */
+ put_byte(pb, 0xff);
+ put_byte(pb, 0xd8);
+ put_byte(pb, 0xff);
+ put_byte(pb, 0xd9);
+ /* write the jpeg image */
+ put_buffer(pb, buf, size);
- put_swf_end_tag(s);
+ put_swf_end_tag(s);
- /* draw the shape */
+ /* draw the shape */
- put_swf_tag(s, TAG_PLACEOBJECT);
- put_le16(pb, SHAPE_ID); /* shape ID */
- put_le16(pb, 1); /* depth */
- put_swf_matrix(pb, 20 << FRAC_BITS, 0, 0, 20 << FRAC_BITS, 0, 0);
- put_swf_end_tag(s);
- } else {
- /* invalid codec */
- }
+ put_swf_tag(s, TAG_PLACEOBJECT);
+ put_le16(pb, SHAPE_ID); /* shape ID */
+ put_le16(pb, 1); /* depth */
+ put_swf_matrix(pb, 20 << FRAC_BITS, 0, 0, 20 << FRAC_BITS, 0, 0);
+ put_swf_end_tag(s);
+ } else {
+ /* invalid codec */
+ }
- swf->swf_frame_number ++;
+ swf->swf_frame_number ++;
/* streaming sound always should be placed just before showframe tags */
if (swf->audio_type && swf->audio_in_pos) {
static int swf_probe(AVProbeData *p)
{
/* check file header */
- if (p->buf_size <= 16)
- return 0;
if ((p->buf[0] == 'F' || p->buf[0] == 'C') && p->buf[1] == 'W' &&
p->buf[2] == 'S')
return AVPROBE_SCORE_MAX;
if (tag == MKBETAG('C', 'W', 'S', 0))
{
av_log(s, AV_LOG_ERROR, "Compressed SWF format not supported\n");
- return AVERROR_IO;
+ return AVERROR(EIO);
}
if (tag != MKBETAG('F', 'W', 'S', 0))
- return AVERROR_IO;
+ return AVERROR(EIO);
get_le32(pb);
/* skip rectangle size */
nbits = get_byte(pb) >> 3;
get_le16(pb); /* frame count */
swf->samples_per_frame = 0;
+ s->ctx_flags |= AVFMTCTX_NOHEADER;
+ return 0;
+}
+
+static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ SWFContext *swf = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ AVStream *vst = NULL, *ast = NULL, *st = 0;
+ int tag, len, i, frame, v;
for(;;) {
- offset_t tag_offset = url_ftell(pb);
tag = get_swf_tag(pb, &len);
- if (tag < 0 || tag == TAG_VIDEOFRAME || tag == TAG_STREAMBLOCK) {
- url_fseek(pb, frame_offset == -1 ? tag_offset : frame_offset, SEEK_SET);
- break;
- }
+ if (tag < 0)
+ return AVERROR(EIO);
if ( tag == TAG_VIDEOSTREAM && !vst) {
int ch_id = get_le16(pb);
get_le16(pb);
vst = av_new_stream(s, ch_id);
vst->codec->codec_type = CODEC_TYPE_VIDEO;
vst->codec->codec_id = codec_get_id(swf_codec_tags, get_byte(pb));
+ av_set_pts_info(vst, 64, 256, swf->frame_rate);
+ vst->codec->time_base = (AVRational){ 256, swf->frame_rate };
+ len -= 10;
} else if ( ( tag == TAG_STREAMHEAD || tag == TAG_STREAMHEAD2 ) && !ast) {
/* streaming found */
int sample_rate_code;
ast->codec->channels = 1 + (v&1);
ast->codec->codec_type = CODEC_TYPE_AUDIO;
ast->codec->codec_id = codec_get_id(swf_audio_codec_tags, (v>>4) & 15);
- ast->need_parsing = 1;
+ ast->need_parsing = AVSTREAM_PARSE_FULL;
sample_rate_code= (v>>2) & 3;
if (!sample_rate_code)
- return AVERROR_IO;
+ return AVERROR(EIO);
ast->codec->sample_rate = 11025 << (sample_rate_code-1);
av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
- if (len > 4)
- url_fskip(pb,len-4);
-
- } else if (tag == TAG_JPEG2 && !vst) {
- vst = av_new_stream(s, -2); /* -2 to avoid clash with video stream and audio stream */
- vst->codec->codec_type = CODEC_TYPE_VIDEO;
- vst->codec->codec_id = CODEC_ID_MJPEG;
- url_fskip(pb, len);
- frame_offset = tag_offset;
- } else {
- url_fskip(pb, len);
- }
- }
- if (vst)
- av_set_pts_info(vst, 64, 256, swf->frame_rate);
- return 0;
-}
-
-static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- SWFContext *swf = s->priv_data;
- ByteIOContext *pb = &s->pb;
- AVStream *st = 0;
- int tag, len, i, frame;
-
- for(;;) {
- tag = get_swf_tag(pb, &len);
- if (tag < 0)
- return AVERROR_IO;
- if (tag == TAG_VIDEOFRAME) {
+ len -= 4;
+ } else if (tag == TAG_VIDEOFRAME) {
int ch_id = get_le16(pb);
len -= 2;
for( i=0; i<s->nb_streams; i++ ) {
} else if (tag == TAG_JPEG2) {
for (i=0; i<s->nb_streams; i++) {
st = s->streams[i];
- if (st->id == -2) {
- get_le16(pb); /* BITMAP_ID */
- av_new_packet(pkt, len-2);
- get_buffer(pb, pkt->data, 4);
- if (AV_RB32(pkt->data) == 0xffd8ffd9) {
- /* old SWF files containing SOI/EOI as data start */
- pkt->size -= 4;
- get_buffer(pb, pkt->data, pkt->size);
- } else {
- get_buffer(pb, pkt->data + 4, pkt->size - 4);
- }
- pkt->stream_index = st->index;
- return pkt->size;
- }
+ if (st->id == -2)
+ break;
}
+ if (i == s->nb_streams) {
+ vst = av_new_stream(s, -2); /* -2 to avoid clash with video stream and audio stream */
+ vst->codec->codec_type = CODEC_TYPE_VIDEO;
+ vst->codec->codec_id = CODEC_ID_MJPEG;
+ av_set_pts_info(vst, 64, 256, swf->frame_rate);
+ vst->codec->time_base = (AVRational){ 256, swf->frame_rate };
+ st = vst;
+ }
+ get_le16(pb); /* BITMAP_ID */
+ av_new_packet(pkt, len-2);
+ get_buffer(pb, pkt->data, 4);
+ if (AV_RB32(pkt->data) == 0xffd8ffd9) {
+ /* old SWF files containing SOI/EOI as data start */
+ pkt->size -= 4;
+ get_buffer(pb, pkt->data, pkt->size);
+ } else {
+ get_buffer(pb, pkt->data + 4, pkt->size - 4);
+ }
+ pkt->stream_index = st->index;
+ return pkt->size;
}
url_fskip(pb, len);
}
static int swf_read_close(AVFormatContext *s)
{
- return 0;
+ return 0;
}
#ifdef CONFIG_SWF_DEMUXER
projects / ffmpeg / blobdiff