Move dvbsubdec parser to its own file.
[ffmpeg.git] / libavcodec / dvbsubdec.c
index 08ef621..ffe1964 100644 (file)
@@ -1459,173 +1459,3 @@ AVCodec dvbsub_decoder = {
     dvbsub_close_decoder,
     dvbsub_decode,
 };
     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,
-};