user overrideable level & profile

Originally committed as revision 3385 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffmpeg.c

@@ -182,6 +182,8 @@ static int intra_dc_precision = 8;
 static int coder = 0;
 static int context = 0;
 static int predictor = 0;
+static int video_profile = FF_PROFILE_UNKNOWN;
+static int video_level = FF_LEVEL_UNKNOWN;
 extern int loop_input; /* currently a hack */
 
 static int gop_size = 12;
@@ -3150,6 +3152,8 @@ static void opt_output_file(const char *filename)
                 video_enc->coder_type= coder;
                 video_enc->context_model= context;
                 video_enc->prediction_method= predictor;
+                video_enc->profile= video_profile;
+                video_enc->level= video_level;
 
                 if(packet_size){
                     video_enc->rtp_mode= 1;
@@ -3839,6 +3843,8 @@ const OptionDef options[] = {
     { "coder", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&coder}, "coder type", "" },
     { "context", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&context}, "context model", "" },
     { "pred", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&predictor}, "prediction method", "" },
+    { "vprofile", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_profile}, "profile", "" },
+    { "vlevel", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_level}, "level", "" },
 
     /* audio options */
     { "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },

libavcodec/avcodec.h

@@ -17,7 +17,7 @@ extern "C" {
 
 #define FFMPEG_VERSION_INT     0x000409
 #define FFMPEG_VERSION         "0.4.9-pre1"
-#define LIBAVCODEC_BUILD       4719
+#define LIBAVCODEC_BUILD       4720
 
 #define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
 #define LIBAVCODEC_VERSION     FFMPEG_VERSION
@@ -1624,6 +1624,22 @@ typedef struct AVCodecContext {
      * - decoding: set by user
      */
      int skip_bottom;
+
+    /**
+     * profile
+     * - encoding: set by user
+     * - decoding: set by lavc
+     */
+     int profile;
+#define FF_PROFILE_UNKNOWN -99
+
+    /**
+     * level
+     * - encoding: set by user
+     * - decoding: set by lavc
+     */
+     int level;
+#define FF_LEVEL_UNKNOWN -99
 } AVCodecContext;
 
 

libavcodec/h263.c

@@ -2154,13 +2154,26 @@ static void mpeg4_encode_visual_object_header(MpegEncContext * s){
     int profile_and_level_indication;
     int vo_ver_id;
     
-    if(s->max_b_frames || s->quarter_sample){
-        profile_and_level_indication= 0xF1; // adv simple level 1
+    if(s->avctx->profile != FF_PROFILE_UNKNOWN){
+        profile_and_level_indication = s->avctx->profile << 4;
+    }else if(s->max_b_frames || s->quarter_sample){
+        profile_and_level_indication= 0xF0; // adv simple
+    }else{
+        profile_and_level_indication= 0x00; // simple
+    }
+
+    if(s->avctx->level != FF_LEVEL_UNKNOWN){
+        profile_and_level_indication |= s->avctx->level;
+    }else{
+        profile_and_level_indication |= 1; //level 1
+    }
+
+    if(profile_and_level_indication>>4 == 0xF){
         vo_ver_id= 5;
     }else{
-        profile_and_level_indication= 0x01; // simple level 1
         vo_ver_id= 1;
     }
+
     //FIXME levels
 
     put_bits(&s->pb, 16, 0);

libavcodec/mpeg12.c

@@ -314,8 +314,19 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
                 put_header(s, EXT_START_CODE);
                 put_bits(&s->pb, 4, 1); //seq ext
                 put_bits(&s->pb, 1, 0); //esc
-                put_bits(&s->pb, 3, 4); //profile
-                put_bits(&s->pb, 4, 8); //level
+                
+                if(s->avctx->profile == FF_PROFILE_UNKNOWN){
+                    put_bits(&s->pb, 3, 4); //profile
+                }else{
+                    put_bits(&s->pb, 3, s->avctx->profile); //profile
+                }
+
+                if(s->avctx->level == FF_LEVEL_UNKNOWN){
+                    put_bits(&s->pb, 4, 8); //level
+                }else{
+                    put_bits(&s->pb, 4, s->avctx->level); //level
+                }
+
                 put_bits(&s->pb, 1, s->progressive_sequence);
                 put_bits(&s->pb, 2, 1); //chroma format 4:2:0
                 put_bits(&s->pb, 2, 0); //horizontal size ext
@@ -1971,11 +1982,10 @@ static void mpeg_decode_sequence_extension(MpegEncContext *s)
 {
     int horiz_size_ext, vert_size_ext;
     int bit_rate_ext;
-    int level, profile;
 
     skip_bits(&s->gb, 1); /* profil and level esc*/
-    profile= get_bits(&s->gb, 3);
-    level= get_bits(&s->gb, 4);
+    s->avctx->profile= get_bits(&s->gb, 3);
+    s->avctx->level= get_bits(&s->gb, 4);
     s->progressive_sequence = get_bits1(&s->gb); /* progressive_sequence */
     s->chroma_format = get_bits(&s->gb, 2); /* chroma_format 1=420, 2=422, 3=444 */
     horiz_size_ext = get_bits(&s->gb, 2);
@@ -1999,7 +2009,7 @@ static void mpeg_decode_sequence_extension(MpegEncContext *s)
 
     if(s->avctx->debug & FF_DEBUG_PICT_INFO)
         av_log(s->avctx, AV_LOG_DEBUG, "profile: %d, level: %d vbv buffer: %d, bitrate:%d\n", 
-               profile, level, s->avctx->rc_buffer_size, s->bit_rate);
+               s->avctx->profile, s->avctx->level, s->avctx->rc_buffer_size, s->bit_rate);
 
 }
 

libavcodec/utils.c

@@ -396,6 +396,8 @@ void avcodec_get_context_defaults(AVCodecContext *s){
     s->lmax= FF_QP2LAMBDA * s->qmax;
     s->sample_aspect_ratio= (AVRational){0,1};
     s->ildct_cmp= FF_CMP_VSAD;
+    s->profile= FF_PROFILE_UNKNOWN;
+    s->level= FF_LEVEL_UNKNOWN;
     
     s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
     s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;