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authorDiego Biurrun <diego@biurrun.de>2007-05-06 02:11:31 +0000
committerDiego Biurrun <diego@biurrun.de>2007-05-06 02:11:31 +0000
commit0d02cacda9db7ac7fe8aa6aa33d76e793009ff23 (patch)
treea582f615211ed5fc4483948bb658362e258331cb /libavcodec/dvbsubdec.c
parentbbb7d4c76b4486c719730e971bf179e0fb978d56 (diff)
Move dvbsubdec parser to its own file.
Originally committed as revision 8906 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dvbsubdec.c')
-rw-r--r--libavcodec/dvbsubdec.c170
1 files changed, 0 insertions, 170 deletions
diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index 08ef6213e0..ffe1964c4f 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1459,173 +1459,3 @@ AVCodec dvbsub_decoder = {
dvbsub_close_decoder,
dvbsub_decode,
};
-
-/* Parser (mostly) copied from dvdsub.c */
-
-#define PARSE_BUF_SIZE (65536)
-
-
-/* parser definition */
-typedef struct DVBSubParseContext {
- uint8_t *packet_buf;
- int packet_start;
- int packet_index;
- int in_packet;
-} DVBSubParseContext;
-
-static int dvbsub_parse_init(AVCodecParserContext *s)
-{
- DVBSubParseContext *pc = s->priv_data;
- pc->packet_buf = av_malloc(PARSE_BUF_SIZE);
-
- return 0;
-}
-
-static int dvbsub_parse(AVCodecParserContext *s,
- AVCodecContext *avctx,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size)
-{
- DVBSubParseContext *pc = s->priv_data;
- uint8_t *p, *p_end;
- int len, buf_pos = 0;
-
-#ifdef DEBUG
- av_log(avctx, AV_LOG_INFO, "DVB parse packet pts=%"PRIx64", lpts=%"PRIx64", cpts=%"PRIx64":\n",
- s->pts, s->last_pts, s->cur_frame_pts[s->cur_frame_start_index]);
-#endif
-
-#ifdef DEBUG_PACKET_CONTENTS
- int i;
-
- for (i=0; i < buf_size; i++)
- {
- av_log(avctx, AV_LOG_INFO, "%02x ", buf[i]);
- if (i % 16 == 15)
- av_log(avctx, AV_LOG_INFO, "\n");
- }
-
- if (i % 16 != 0)
- av_log(avctx, AV_LOG_INFO, "\n");
-
-#endif
-
- *poutbuf = NULL;
- *poutbuf_size = 0;
-
- s->fetch_timestamp = 1;
-
- if (s->last_pts != s->pts && s->last_pts != AV_NOPTS_VALUE) /* Start of a new packet */
- {
- if (pc->packet_index != pc->packet_start)
- {
-#ifdef DEBUG
- av_log(avctx, AV_LOG_INFO, "Discarding %d bytes\n",
- pc->packet_index - pc->packet_start);
-#endif
- }
-
- pc->packet_start = 0;
- pc->packet_index = 0;
-
- if (buf_size < 2 || buf[0] != 0x20 || buf[1] != 0x00) {
-#ifdef DEBUG
- av_log(avctx, AV_LOG_INFO, "Bad packet header\n");
-#endif
- return -1;
- }
-
- buf_pos = 2;
-
- pc->in_packet = 1;
- } else {
- if (pc->packet_start != 0)
- {
- if (pc->packet_index != pc->packet_start)
- {
- memmove(pc->packet_buf, pc->packet_buf + pc->packet_start,
- pc->packet_index - pc->packet_start);
-
- pc->packet_index -= pc->packet_start;
- pc->packet_start = 0;
- } else {
- pc->packet_start = 0;
- pc->packet_index = 0;
- }
- }
- }
-
- if (buf_size - buf_pos + pc->packet_index > PARSE_BUF_SIZE)
- return -1;
-
-/* if not currently in a packet, discard data */
- if (pc->in_packet == 0)
- return buf_size;
-
- memcpy(pc->packet_buf + pc->packet_index, buf + buf_pos, buf_size - buf_pos);
- pc->packet_index += buf_size - buf_pos;
-
- p = pc->packet_buf;
- p_end = pc->packet_buf + pc->packet_index;
-
- while (p < p_end)
- {
- if (*p == 0x0f)
- {
- if (p + 6 <= p_end)
- {
- len = AV_RB16(p + 4);
-
- if (p + len + 6 <= p_end)
- {
- *poutbuf_size += len + 6;
-
- p += len + 6;
- } else
- break;
- } else
- break;
- } else if (*p == 0xff) {
- if (p + 1 < p_end)
- {
-#ifdef DEBUG
- av_log(avctx, AV_LOG_INFO, "Junk at end of packet\n");
-#endif
- }
- pc->packet_index = p - pc->packet_buf;
- pc->in_packet = 0;
- break;
- } else {
- av_log(avctx, AV_LOG_ERROR, "Junk in packet\n");
-
- pc->packet_index = p - pc->packet_buf;
- pc->in_packet = 0;
- break;
- }
- }
-
- if (*poutbuf_size > 0)
- {
- *poutbuf = pc->packet_buf;
- pc->packet_start = *poutbuf_size;
- }
-
- if (s->last_pts == AV_NOPTS_VALUE)
- s->last_pts = s->pts;
-
- return buf_size;
-}
-
-static void dvbsub_parse_close(AVCodecParserContext *s)
-{
- DVBSubParseContext *pc = s->priv_data;
- av_freep(&pc->packet_buf);
-}
-
-AVCodecParser dvbsub_parser = {
- { CODEC_ID_DVB_SUBTITLE },
- sizeof(DVBSubParseContext),
- dvbsub_parse_init,
- dvbsub_parse,
- dvbsub_parse_close,
-};