/* mediastreamer2 library - modular sound and video processing and streaming Copyright (C) 2006 Simon MORLAT (simon.morlat@linphone.org) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "mediastreamer-config.h" #endif #include "ffmpeg-priv.h" #include "mediastreamer2/msfilter.h" #include "mediastreamer2/msvideo.h" #include "mediastreamer2/msticker.h" #include "rfc2429.h" extern void ms_ffmpeg_check_init(); typedef struct DecState{ AVCodecContext av_context; AVCodec *av_codec; enum CodecID codec; mblk_t *input; YuvBuf outbuf; mblk_t *yuv_msg; struct SwsContext *sws_ctx; enum PixelFormat output_pix_fmt; uint8_t dci[512]; int dci_size; uint64_t last_error_reported_time; bool_t snow_initialized; bool_t first_image_decoded; }DecState; static void dec_init(MSFilter *f, enum CodecID cid){ DecState *s=(DecState *)ms_new0(DecState,1); ms_ffmpeg_check_init(); avcodec_get_context_defaults3(&s->av_context, NULL); s->av_codec=NULL; s->codec=cid; s->input=NULL; s->yuv_msg=NULL; s->output_pix_fmt=PIX_FMT_YUV420P; s->snow_initialized=FALSE; s->outbuf.w=0; s->outbuf.h=0; s->sws_ctx=NULL; f->data=s; s->av_codec=avcodec_find_decoder(s->codec); if (s->av_codec==NULL){ ms_error("Could not find decoder %i!",s->codec); } /* s->av_context.width=MS_VIDEO_SIZE_QCIF_W; s->av_context.height=MS_VIDEO_SIZE_QCIF_H; */ } static void dec_h263_init(MSFilter *f){ dec_init(f,CODEC_ID_H263); } static void dec_mpeg4_init(MSFilter *f){ dec_init(f,CODEC_ID_MPEG4); } static void dec_mjpeg_init(MSFilter *f){ dec_init(f,CODEC_ID_MJPEG); } static void dec_snow_init(MSFilter *f){ dec_init(f,CODEC_ID_SNOW); } static void dec_uninit(MSFilter *f){ DecState *s=(DecState*)f->data; if (s->av_context.codec!=NULL){ avcodec_close(&s->av_context); s->av_context.codec=NULL; } if (s->input!=NULL) freemsg(s->input); if (s->yuv_msg!=NULL) freemsg(s->yuv_msg); if (s->sws_ctx!=NULL){ sws_freeContext(s->sws_ctx); s->sws_ctx=NULL; } ms_free(s); } static int dec_add_fmtp(MSFilter *f, void *data){ const char *fmtp=(const char*)data; DecState *s=(DecState*)f->data; char config[512]; if (fmtp_get_value(fmtp,"config",config,sizeof(config))){ /*convert hexa decimal config string into a bitstream */ int i,j,max=strlen(config); char octet[3]; octet[2]=0; for(i=0,j=0;idci[j]=(uint8_t)strtol(octet,NULL,16); } s->dci_size=j; ms_message("Got mpeg4 config string: %s",config); } return 0; } static void dec_preprocess(MSFilter *f){ DecState *s=(DecState*)f->data; int error; s->first_image_decoded = FALSE; if (s->av_context.codec==NULL){ /* we must know picture size before initializing snow decoder*/ if (s->codec!=CODEC_ID_SNOW){ error=avcodec_open2(&s->av_context, s->av_codec, NULL); if (error!=0) ms_error("avcodec_open() failed: %i",error); if (s->codec==CODEC_ID_MPEG4 && s->dci_size>0){ s->av_context.extradata=s->dci; s->av_context.extradata_size=s->dci_size; } } } } static void dec_postprocess(MSFilter *f){ } static mblk_t * skip_rfc2190_header(mblk_t *inm){ uint8_t *ph = inm->b_rptr; uint8_t sbit = (ph[0] >> 3) & 0x07; //unsigned int ebit = ph[0] & 0x7; bool_t isIFrame=0; unsigned hdrLen; char mode; if (msgdsize(inm) < 5 ) { ms_warning("RFC2190 packet too small (size %d) to scan!", (int)msgdsize(inm)); freemsg(inm); return NULL; } if ((ph[0] & 0x80) == 0) { isIFrame = (ph[1] & 0x10) == 0; hdrLen = 4; mode = 'A'; } else if ((ph[0] & 0x40) == 0) { isIFrame = (ph[4] & 0x80) == 0; hdrLen = 8; mode = 'B'; } else { isIFrame = (ph[4] & 0x80) == 0; hdrLen = 12; mode = 'C'; } if (msgdsize(inm) > hdrLen) { inm->reserved2 |= (sbit << 11); inm->b_rptr += hdrLen; } else { ms_warning("RFC2190 packet mode:%c%s too small (size %d)", mode, isIFrame ? " (I-Frame)":"", (int)msgdsize(inm)); freemsg(inm); inm=NULL; } return inm; } static mblk_t * skip_rfc2429_header(mblk_t *inm){ if (msgdsize(inm) >= 2){ /*uint32_t *p = (uint32_t*)inm->b_rptr;*/ uint8_t *ph=inm->b_rptr; int PLEN; /*int gob_num;*/ bool_t P; P=rfc2429_get_P(ph); PLEN=rfc2429_get_PLEN(ph); /*printf("receiving new packet; P=%i; V=%i; PLEN=%i; PEBIT=%i\n",P,rfc2429_get_V(ph),PLEN,rfc2429_get_PEBIT(ph)); */ /*gob_num = (ntohl(*p) >> 10) & 0x1f;*/ /*ms_message("gob %i, size %i", gob_num, msgdsize(inm)); ms_message("ms_AVdecoder_process: received %08x %08x", ntohl(p[0]), ntohl(p[1]));*/ /* remove H.263 Payload Header */ if (PLEN>0){ /* we ignore the redundant picture header and directly go to the bitstream */ inm->b_rptr+=PLEN; } if (P){ inm->b_rptr[0]=inm->b_rptr[1]=0; }else{ /* no PSC omitted */ inm->b_rptr+=2; } return inm; }else freemsg(inm); return NULL; } static mblk_t * parse_snow_header(DecState *s,mblk_t *inm){ if (msgdsize(inm) >= 4){ uint32_t h = ntohl(*(uint32_t*)inm->b_rptr); if (!s->snow_initialized){ int error; s->av_context.width=h>>16; s->av_context.height=h&0xffff; error=avcodec_open2(&s->av_context, s->av_codec, NULL); if (error!=0) ms_error("avcodec_open() failed for snow: %i",error); else { s->snow_initialized=TRUE; ms_message("Snow decoder initialized,size=%ix%i", s->av_context.width, s->av_context.height); } } inm->b_rptr+=4; return inm; }else { freemsg(inm); return NULL; } } struct jpeghdr { //unsigned int tspec:8; /* type-specific field */ unsigned int off:32; /* fragment byte offset */ uint8_t type; /* id of jpeg decoder params */ uint8_t q; /* quantization factor (or table id) */ uint8_t width; /* frame width in 8 pixel blocks */ uint8_t height; /* frame height in 8 pixel blocks */ }; struct jpeghdr_rst { uint16_t dri; unsigned int f:1; unsigned int l:1; unsigned int count:14; }; struct jpeghdr_qtable { uint8_t mbz; uint8_t precision; uint16_t length; }; static u_char lum_dc_codelens[] = { 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, }; static u_char lum_dc_symbols[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, }; static u_char lum_ac_codelens[] = { 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d, }; static u_char lum_ac_symbols[] = { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, }; static u_char chm_dc_codelens[] = { 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, }; static u_char chm_dc_symbols[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, }; static u_char chm_ac_codelens[] = { 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77, }; static u_char chm_ac_symbols[] = { 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, }; static u_char * MakeQuantHeader(u_char *p, u_char *qt, int tableNo, int table_len) { *p++ = 0xff; *p++ = 0xdb; /* DQT */ *p++ = 0; /* length msb */ *p++ = table_len+3; /* length lsb */ *p++ = tableNo; memcpy(p, qt, table_len); return (p + table_len); } static u_char * MakeHuffmanHeader(u_char *p, u_char *codelens, int ncodes, u_char *symbols, int nsymbols, int tableNo, int tableClass) { *p++ = 0xff; *p++ = 0xc4; /* DHT */ *p++ = 0; /* length msb */ *p++ = 3 + ncodes + nsymbols; /* length lsb */ *p++ = (tableClass << 4) | tableNo; memcpy(p, codelens, ncodes); p += ncodes; memcpy(p, symbols, nsymbols); p += nsymbols; return (p); } static u_char * MakeDRIHeader(u_char *p, u_short dri) { *p++ = 0xff; *p++ = 0xdd; /* DRI */ *p++ = 0x0; /* length msb */ *p++ = 4; /* length lsb */ *p++ = dri >> 8; /* dri msb */ *p++ = dri & 0xff; /* dri lsb */ return (p); } /* * Arguments: * type, width, height: as supplied in RTP/JPEG header * lqt, cqt: quantization tables as either derived from * the Q field using MakeTables() or as specified * in section 4.2. * dri: restart interval in MCUs, or 0 if no restarts. * * p: pointer to return area * * Return value: * The length of the generated headers. * * Generate a frame and scan headers that can be prepended to the * RTP/JPEG data payload to produce a JPEG compressed image in * interchange format (except for possible trailing garbage and * absence of an EOI marker to terminate the scan). */ static int MakeHeaders(u_char *p, int type, int w, int h, u_char *lqt, u_char *cqt, unsigned table_len, u_short dri) { u_char *start = p; /* convert from blocks to pixels */ w <<= 3; h <<= 3; *p++ = 0xff; *p++ = 0xd8; /* SOI */ if (table_len>64) { p = MakeQuantHeader(p, lqt, 0, table_len/2); p = MakeQuantHeader(p, cqt, 1, table_len/2); } else { p = MakeQuantHeader(p, lqt, 0, table_len); //p = MakeQuantHeader(p, lqt, 1, table_len); } if (dri != 0) p = MakeDRIHeader(p, dri); *p++ = 0xff; *p++ = 0xc0; /* SOF */ *p++ = 0; /* length msb */ *p++ = 17; /* length lsb */ *p++ = 8; /* 8-bit precision */ *p++ = h >> 8; /* height msb */ *p++ = h; /* height lsb */ *p++ = w >> 8; /* width msb */ *p++ = w; /* wudth lsb */ *p++ = 3; /* number of components */ *p++ = 0; /* comp 0 */ if (type == 0) *p++ = 0x21; /* hsamp = 2, vsamp = 1 */ else *p++ = 0x22; /* hsamp = 2, vsamp = 2 */ *p++ = 0; /* quant table 0 */ *p++ = 1; /* comp 1 */ *p++ = 0x11; /* hsamp = 1, vsamp = 1 */ *p++ = table_len <= 64 ? 0x00 : 0x01; //1 /* quant table 1 */ *p++ = 2; /* comp 2 */ *p++ = 0x11; /* hsamp = 1, vsamp = 1 */ *p++ = table_len <= 64 ? 0x00 : 0x01; //1; /* quant table 1 */ p = MakeHuffmanHeader(p, lum_dc_codelens, sizeof(lum_dc_codelens), lum_dc_symbols, sizeof(lum_dc_symbols), 0, 0); p = MakeHuffmanHeader(p, lum_ac_codelens, sizeof(lum_ac_codelens), lum_ac_symbols, sizeof(lum_ac_symbols), 0, 1); p = MakeHuffmanHeader(p, chm_dc_codelens, sizeof(chm_dc_codelens), chm_dc_symbols, sizeof(chm_dc_symbols), 1, 0); p = MakeHuffmanHeader(p, chm_ac_codelens, sizeof(chm_ac_codelens), chm_ac_symbols, sizeof(chm_ac_symbols), 1, 1); *p++ = 0xff; *p++ = 0xda; /* SOS */ *p++ = 0; /* length msb */ *p++ = 12; /* length lsb */ *p++ = 3; /* 3 components */ *p++ = 0; /* comp 0 */ *p++ = 0; /* huffman table 0 */ *p++ = 1; /* comp 1 */ *p++ = 0x11; /* huffman table 1 */ *p++ = 2; /* comp 2 */ *p++ = 0x11; /* huffman table 1 */ *p++ = 0; /* first DCT coeff */ *p++ = 63; /* last DCT coeff */ *p++ = 0; /* sucessive approx. */ return (p - start); }; /* * Table K.1 from JPEG spec. */ static const int jpeg_luma_quantizer[64] = { 16, 11, 10, 16, 24, 40, 51, 61, 12, 12, 14, 19, 26, 58, 60, 55, 14, 13, 16, 24, 40, 57, 69, 56, 14, 17, 22, 29, 51, 87, 80, 62, 18, 22, 37, 56, 68, 109, 103, 77, 24, 35, 55, 64, 81, 104, 113, 92, 49, 64, 78, 87, 103, 121, 120, 101, 72, 92, 95, 98, 112, 100, 103, 99 }; /* * Table K.2 from JPEG spec. */ static const int jpeg_chroma_quantizer[64] = { 17, 18, 24, 47, 99, 99, 99, 99, 18, 21, 26, 66, 99, 99, 99, 99, 24, 26, 56, 99, 99, 99, 99, 99, 47, 66, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99 }; /* * Call MakeTables with the Q factor and two u_char[64] return arrays */ static void MakeTables(int q, u_char *lqt, u_char *cqt) { int i; int factor = q; if (q < 1) factor = 1; if (q > 99) factor = 99; if (q < 50) q = 5000 / factor; else q = 200 - factor*2; for (i=0; i < 64; i++) { int lq = (jpeg_luma_quantizer[i] * q + 50) / 100; int cq = (jpeg_chroma_quantizer[i] * q + 50) / 100; /* Limit the quantizers to 1 <= q <= 255 */ if (lq < 1) lq = 1; else if (lq > 255) lq = 255; lqt[i] = lq; if (cq < 1) cq = 1; else if (cq > 255) cq = 255; cqt[i] = cq; } } static mblk_t * read_rfc2435_header(DecState *s,mblk_t *inm) { if (msgdsize(inm) >= sizeof(struct jpeghdr)) { struct jpeghdr *hdr = (struct jpeghdr *)inm->b_rptr; uint32_t off = ntohl(*(uint32_t*)inm->b_rptr); uint16_t dri=0; uint16_t table_len=0; int len=0; mblk_t *headers=NULL; inm->b_rptr += sizeof(struct jpeghdr); if (hdr->type>63){ struct jpeghdr_rst *rsthdr = (struct jpeghdr_rst *)inm->b_rptr; dri = ntohs(rsthdr->dri); inm->b_rptr += sizeof(struct jpeghdr_rst); } if (off==0){ if (hdr->q>=128){ inm->b_rptr++; /* MBZ */ inm->b_rptr++; /* Precision */ table_len = ntohs(*((uint16_t*)(inm->b_rptr))); inm->b_rptr++; /* len */ inm->b_rptr++; /* len */ headers = allocb(495 + table_len*2 + (dri > 0 ? 6 : 0), 0); len = MakeHeaders(headers->b_rptr, hdr->type, hdr->width, hdr->height, inm->b_rptr, inm->b_rptr+table_len/2, table_len, dri); inm->b_rptr += table_len; headers->b_wptr += len; }else{ uint8_t lqt_cqt[128]; MakeTables(hdr->q, lqt_cqt, lqt_cqt+64); table_len=128; headers = allocb(495 + table_len + (dri > 0 ? 6 : 0), 0); len = MakeHeaders(headers->b_rptr, hdr->type, hdr->width, hdr->height, lqt_cqt, lqt_cqt+64, table_len, dri); headers->b_wptr += len; } } if (headers!=NULL) { /* prepend headers to JPEG RTP data */ if (mblk_get_marker_info(inm)) mblk_set_marker_info(headers, TRUE); headers->b_cont=inm; msgpullup(headers, -1); return headers; } } else { freemsg(inm); inm=NULL; } return inm; } static mblk_t *get_as_yuvmsg(MSFilter *f, DecState *s, AVFrame *orig){ AVCodecContext *ctx=&s->av_context; if (ctx->width==0 || ctx->height==0){ ms_error("%s: wrong image size provided by decoder.",f->desc->name); return NULL; } if (orig->data[0]==NULL){ ms_error("%s: no image data.",f->desc->name); return NULL; } if (s->outbuf.w!=ctx->width || s->outbuf.h!=ctx->height){ if (s->sws_ctx!=NULL){ sws_freeContext(s->sws_ctx); s->sws_ctx=NULL; } s->yuv_msg=ms_yuv_buf_alloc(&s->outbuf,ctx->width,ctx->height); s->outbuf.w=ctx->width; s->outbuf.h=ctx->height; s->sws_ctx=sws_getContext(ctx->width,ctx->height,ctx->pix_fmt, ctx->width,ctx->height,s->output_pix_fmt,SWS_FAST_BILINEAR, NULL, NULL, NULL); } if (s->sws_ctx==NULL){ ms_error("%s: missing rescaling context.",f->desc->name); return NULL; } #if LIBSWSCALE_VERSION_INT >= AV_VERSION_INT(0,9,0) if (sws_scale(s->sws_ctx,(const uint8_t* const*)orig->data,orig->linesize, 0, ctx->height, s->outbuf.planes, s->outbuf.strides)<0){ #else if (sws_scale(s->sws_ctx,(uint8_t**)orig->data,orig->linesize, 0, ctx->height, s->outbuf.planes, s->outbuf.strides)<0){ #endif ms_error("%s: error in ms_sws_scale().",f->desc->name); } return dupmsg(s->yuv_msg); } /* Bitmasks to select bits of a byte from low side */ static unsigned char smasks[7] = { 0x7f, 0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01 }; static void dec_process_frame(MSFilter *f, mblk_t *inm){ DecState *s=(DecState*)f->data; AVFrame orig; int got_picture; /* get a picture from the input queue */ if (f->desc->id==MS_H263_DEC_ID) inm=skip_rfc2429_header(inm); else if (f->desc->id==MS_H263_OLD_DEC_ID) inm=skip_rfc2190_header(inm); else if (s->codec==CODEC_ID_SNOW && s->input==NULL) inm=parse_snow_header(s,inm); else if (s->codec==CODEC_ID_MJPEG && f->desc->id==MS_JPEG_DEC_ID) inm=read_rfc2435_header(s,inm); if (inm){ /* accumulate the video packet until we have the rtp markbit*/ if (s->input==NULL){ s->input=inm; }else{ uint8_t sbit = (inm->reserved2 >> 11) & 0x7; if (sbit!=0) { mblk_t *mp = s->input; while ( mp->b_cont != NULL ) mp = mp->b_cont; mp->b_wptr--; mp->b_wptr[0] |= ( inm->b_rptr[0] & smasks[sbit-1] ); mp->b_wptr++; inm->b_rptr++; } concatb(s->input,inm); } if (mblk_get_marker_info(inm)){ mblk_t *frame; int remain,len; /*ms_message("got marker bit !");*/ /*append some padding bytes for ffmpeg to safely read extra bytes...*/ msgpullup(s->input,msgdsize(s->input)+8); frame=s->input; s->input=NULL; while ( (remain=frame->b_wptr-frame->b_rptr)> 0) { AVPacket pkt; av_init_packet(&pkt); pkt.data = frame->b_rptr; pkt.size = remain; len=avcodec_decode_video2(&s->av_context,&orig,&got_picture,&pkt); if (len<=0) { ms_warning("ms_AVdecoder_process: error %i.",len); if ((f->ticker->time - s->last_error_reported_time)>5000 || s->last_error_reported_time==0) { s->last_error_reported_time=f->ticker->time; ms_filter_notify_no_arg(f,MS_VIDEO_DECODER_DECODING_ERRORS); } break; } if (got_picture) { mblk_t *om = get_as_yuvmsg(f,s,&orig); if (om!=NULL) ms_queue_put(f->outputs[0],om); if (!s->first_image_decoded) { s->first_image_decoded = TRUE; ms_filter_notify_no_arg(f,MS_VIDEO_DECODER_FIRST_IMAGE_DECODED); } } frame->b_rptr+=len; } freemsg(frame); } } } static void dec_process(MSFilter *f){ mblk_t *inm; while((inm=ms_queue_get(f->inputs[0]))!=0){ dec_process_frame(f,inm); } } static int reset_first_image(MSFilter* f, void *data) { DecState *s=(DecState*)f->data; s->first_image_decoded = FALSE; return 0; } static int dec_get_vsize(MSFilter *f, void *data) { DecState *s = (DecState *)f->data; MSVideoSize *vsize = (MSVideoSize *)data; if (s->first_image_decoded == TRUE) { vsize->width = s->outbuf.w; vsize->height = s->outbuf.h; } else { vsize->width = MS_VIDEO_SIZE_UNKNOWN_W; vsize->height = MS_VIDEO_SIZE_UNKNOWN_H; } return 0; } static MSFilterMethod methods[]={ { MS_FILTER_ADD_FMTP , dec_add_fmtp }, { MS_VIDEO_DECODER_RESET_FIRST_IMAGE_NOTIFICATION, reset_first_image }, { MS_FILTER_GET_VIDEO_SIZE, dec_get_vsize }, { 0 , NULL } }; #ifdef _MSC_VER MSFilterDesc ms_h263_dec_desc={ MS_H263_DEC_ID, "MSH263Dec", N_("A H.263 decoder using ffmpeg library"), MS_FILTER_DECODER, "H263-1998", 1, 1, dec_h263_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; MSFilterDesc ms_h263_old_dec_desc={ MS_H263_OLD_DEC_ID, "MSH263OldDec", N_("A H.263 decoder using ffmpeg library"), MS_FILTER_DECODER, "H263", 1, 1, dec_h263_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; MSFilterDesc ms_mpeg4_dec_desc={ MS_MPEG4_DEC_ID, "MSMpeg4Dec", N_("A MPEG4 decoder using ffmpeg library"), MS_FILTER_DECODER, "MP4V-ES", 1, 1, dec_mpeg4_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; MSFilterDesc ms_jpeg_dec_desc={ MS_JPEG_DEC_ID, "MSJpegDec", N_("A RTP/JPEG decoder using ffmpeg library"), MS_FILTER_DECODER, "JPEG", 1, 1, dec_mjpeg_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; MSFilterDesc ms_mjpeg_dec_desc={ MS_MJPEG_DEC_ID, "MSMJpegDec", N_("A MJPEG decoder using ffmpeg library"), MS_FILTER_DECODER, "MJPEG", 1, 1, dec_mjpeg_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; MSFilterDesc ms_snow_dec_desc={ MS_SNOW_DEC_ID, "MSSnowDec", N_("A snow decoder using ffmpeg library"), MS_FILTER_DECODER, "snow", 1, 1, dec_snow_init, dec_preprocess, dec_process, dec_postprocess, dec_uninit, methods }; #else MSFilterDesc ms_h263_dec_desc={ .id=MS_H263_DEC_ID, .name="MSH263Dec", .text=N_("A H.263 decoder using ffmpeg library"), .category=MS_FILTER_DECODER, .enc_fmt="H263-1998", .ninputs=1, .noutputs=1, .init=dec_h263_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; MSFilterDesc ms_h263_old_dec_desc={ .id=MS_H263_OLD_DEC_ID, .name="MSH263OldDec", .text=N_("A H.263 decoder using ffmpeg library"), .category=MS_FILTER_DECODER, .enc_fmt="H263", .ninputs=1, .noutputs=1, .init=dec_h263_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; MSFilterDesc ms_mpeg4_dec_desc={ .id=MS_MPEG4_DEC_ID, .name="MSMpeg4Dec", .text="A MPEG4 decoder using ffmpeg library", .category=MS_FILTER_DECODER, .enc_fmt="MP4V-ES", .ninputs=1, .noutputs=1, .init=dec_mpeg4_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; MSFilterDesc ms_jpeg_dec_desc={ .id=MS_JPEG_DEC_ID, .name="MSJpegDec", .text="A RTP/MJEPG decoder using ffmpeg library", .category=MS_FILTER_DECODER, .enc_fmt="JPEG", .ninputs=1, .noutputs=1, .init=dec_mjpeg_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; MSFilterDesc ms_mjpeg_dec_desc={ .id=MS_MJPEG_DEC_ID, .name="MSMJpegDec", .text="A MJEPG decoder using ffmpeg library", .category=MS_FILTER_DECODER, .enc_fmt="MJPEG", .ninputs=1, .noutputs=1, .init=dec_mjpeg_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; MSFilterDesc ms_snow_dec_desc={ .id=MS_SNOW_DEC_ID, .name="MSSnowDec", .text="A snow decoder using ffmpeg library", .category=MS_FILTER_DECODER, .enc_fmt="x-snow", .ninputs=1, .noutputs=1, .init=dec_snow_init, .preprocess=dec_preprocess, .process=dec_process, .postprocess=dec_postprocess, .uninit=dec_uninit, .methods= methods }; #endif MS_FILTER_DESC_EXPORT(ms_mpeg4_dec_desc) MS_FILTER_DESC_EXPORT(ms_h263_dec_desc) MS_FILTER_DESC_EXPORT(ms_h263_old_dec_desc) MS_FILTER_DESC_EXPORT(ms_snow_dec_desc) /* decode JPEG image with RTP/jpeg headers */ MS_FILTER_DESC_EXPORT(ms_jpeg_dec_desc) /* decode JPEG image with jpeg headers */ MS_FILTER_DESC_EXPORT(ms_mjpeg_dec_desc)