doxygen: Prefer member groups over grouping into modules

Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.

Additionally, this commit streamlines some spelling and appearances.

19 files changed, 143 insertions, 144 deletions

diff --git a/libavcodec/aac.h b/libavcodec/aac.h
index 76b6a7821b..4861ec0320 100644
--- a/libavcodec/aac.h
+++ b/libavcodec/aac.h
@@ -258,7 +258,7 @@ typedef struct {
     DynamicRangeControl che_drc;
 
     /**
-     * @defgroup elements Channel element related data.
+     * @name Channel element related data
      * @{
      */
     enum ChannelPosition che_pos[4][MAX_ELEM_ID]; /**< channel element channel mapping with the
@@ -270,14 +270,15 @@ typedef struct {
     /** @} */
 
     /**
-     * @defgroup temporary aligned temporary buffers (We do not want to have these on the stack.)
+     * @name temporary aligned temporary buffers
+     * (We do not want to have these on the stack.)
      * @{
      */
     DECLARE_ALIGNED(32, float, buf_mdct)[1024];
     /** @} */
 
     /**
-     * @defgroup tables   Computed / set up during initialization.
+     * @name Computed / set up during initialization
      * @{
      */
     FFTContext mdct;
@@ -289,7 +290,7 @@ typedef struct {
     /** @} */
 
     /**
-     * @defgroup output   Members used for output interleaving.
+     * @name Members used for output interleaving
      * @{
      */
     float *output_data[MAX_CHANNELS];                 ///< Points to each element's 'ret' buffer (PCM output).
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index c06f3d542d..9adad93db8 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -92,7 +92,7 @@ typedef struct AC3BitAllocParameters {
  * Coded AC-3 header values up to the lfeon element, plus derived values.
  */
 typedef struct {
-    /** @defgroup coded Coded elements
+    /** @name Coded elements
      * @{
      */
     uint16_t sync_word;
@@ -110,7 +110,7 @@ typedef struct {
     int num_blocks;                         ///< number of audio blocks
     /** @} */
 
-    /** @defgroup derived Derived values
+    /** @name Derived values
      * @{
      */
     uint8_t sr_shift;
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h
index 590bee6b6d..aed87432f5 100644
--- a/libavcodec/ac3dec.h
+++ b/libavcodec/ac3dec.h
@@ -67,7 +67,7 @@ typedef struct {
     GetBitContext gbc;                      ///< bitstream reader
     uint8_t *input_buffer;                  ///< temp buffer to prevent overread
 
-///@defgroup bsi bit stream information
+///@name Bit stream information
 ///@{
     int frame_type;                         ///< frame type                             (strmtyp)
     int substreamid;                        ///< substream identification
@@ -85,7 +85,7 @@ typedef struct {
     int eac3;                               ///< indicates if current frame is E-AC-3
 ///@}
 
-///@defgroup audfrm frame syntax parameters
+///@name Frame syntax parameters
     int snr_offset_strategy;                ///< SNR offset strategy                    (snroffststr)
     int block_switch_syntax;                ///< block switch syntax enabled            (blkswe)
     int dither_flag_syntax;                 ///< dither flag syntax enabled             (dithflage)
@@ -95,7 +95,7 @@ typedef struct {
     int skip_syntax;                        ///< skip field syntax enabled              (skipflde)
  ///@}
 
-///@defgroup cpl standard coupling
+///@name Standard coupling
     int cpl_in_use[AC3_MAX_BLOCKS];         ///< coupling in use                        (cplinu)
     int cpl_strategy_exists[AC3_MAX_BLOCKS];///< coupling strategy exists               (cplstre)
     int channel_in_cpl[AC3_MAX_CHANNELS];   ///< channel in coupling                    (chincpl)
@@ -108,7 +108,7 @@ typedef struct {
     int cpl_coords[AC3_MAX_CHANNELS][AC3_MAX_CPL_BANDS]; ///< coupling coordinates      (cplco)
 ///@}
 
-///@defgroup spx spectral extension
+///@name Spectral extension
 ///@{
     int spx_in_use;                             ///< spectral extension in use              (spxinu)
     uint8_t channel_uses_spx[AC3_MAX_CHANNELS]; ///< channel uses spectral extension        (chinspx)
@@ -124,12 +124,12 @@ typedef struct {
     float spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS];///< spx signal blending factor (sblendfact)
 ///@}
 
-///@defgroup aht adaptive hybrid transform
+///@name Adaptive hybrid transform
     int channel_uses_aht[AC3_MAX_CHANNELS];                         ///< channel AHT in use (chahtinu)
     int pre_mantissa[AC3_MAX_CHANNELS][AC3_MAX_COEFS][AC3_MAX_BLOCKS];  ///< pre-IDCT mantissas
 ///@}
 
-///@defgroup channel channel
+///@name Channel
     int fbw_channels;                           ///< number of full-bandwidth channels
     int channels;                               ///< number of total channels
     int lfe_ch;                                 ///< index of LFE channel
@@ -139,27 +139,27 @@ typedef struct {
     int out_channels;                           ///< number of output channels
 ///@}
 
-///@defgroup dynrng dynamic range
+///@name Dynamic range
     float dynamic_range[2];                 ///< dynamic range
 ///@}
 
-///@defgroup bandwidth bandwidth
+///@name Bandwidth
     int start_freq[AC3_MAX_CHANNELS];       ///< start frequency bin                    (strtmant)
     int end_freq[AC3_MAX_CHANNELS];         ///< end frequency bin                      (endmant)
 ///@}
 
-///@defgroup rematrixing rematrixing
+///@name Rematrixing
     int num_rematrixing_bands;              ///< number of rematrixing bands            (nrematbnd)
     int rematrixing_flags[4];               ///< rematrixing flags                      (rematflg)
 ///@}
 
-///@defgroup exponents exponents
+///@name Exponents
     int num_exp_groups[AC3_MAX_CHANNELS];           ///< Number of exponent groups      (nexpgrp)
     int8_t dexps[AC3_MAX_CHANNELS][AC3_MAX_COEFS];  ///< decoded exponents
     int exp_strategy[AC3_MAX_BLOCKS][AC3_MAX_CHANNELS]; ///< exponent strategies        (expstr)
 ///@}
 
-///@defgroup bitalloc bit allocation
+///@name Bit allocation
     AC3BitAllocParameters bit_alloc_params;         ///< bit allocation parameters
     int first_cpl_leak;                             ///< first coupling leak state      (firstcplleak)
     int snr_offset[AC3_MAX_CHANNELS];               ///< signal-to-noise ratio offsets  (snroffst)
@@ -175,25 +175,25 @@ typedef struct {
     uint8_t dba_values[AC3_MAX_CHANNELS][8];        ///< delta values for each segment
 ///@}
 
-///@defgroup dithering zero-mantissa dithering
+///@name Zero-mantissa dithering
     int dither_flag[AC3_MAX_CHANNELS];      ///< dither flags                           (dithflg)
     AVLFG dith_state;                       ///< for dither generation
 ///@}
 
-///@defgroup imdct IMDCT
+///@name IMDCT
     int block_switch[AC3_MAX_CHANNELS];     ///< block switch flags                     (blksw)
     FFTContext imdct_512;                   ///< for 512 sample IMDCT
     FFTContext imdct_256;                   ///< for 256 sample IMDCT
 ///@}
 
-///@defgroup opt optimization
+///@name Optimization
     DSPContext dsp;                         ///< for optimization
     AC3DSPContext ac3dsp;
     FmtConvertContext fmt_conv;             ///< optimized conversion functions
     float mul_bias;                         ///< scaling for float_to_int16 conversion
 ///@}
 
-///@defgroup arrays aligned arrays
+///@name Aligned arrays
     DECLARE_ALIGNED(16, int,   fixed_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS];       ///< fixed-point transform coefficients
     DECLARE_ALIGNED(32, float, transform_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS];   ///< transform coefficients
     DECLARE_ALIGNED(32, float, delay)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE];             ///< delay - added to the next block
diff --git a/libavcodec/amrnbdec.c b/libavcodec/amrnbdec.c
index 4e24e26d68..1c90aadb12 100644
--- a/libavcodec/amrnbdec.c
+++ b/libavcodec/amrnbdec.c
@@ -204,7 +204,7 @@ static enum Mode unpack_bitstream(AMRContext *p, const uint8_t *buf,
 }
 
 
-/// @defgroup amr_lpc_decoding AMR pitch LPC coefficient decoding functions
+/// @name AMR pitch LPC coefficient decoding functions
 /// @{
 
 /**
@@ -341,7 +341,7 @@ static void lsf2lsp_3(AMRContext *p)
 /// @}
 
 
-/// @defgroup amr_pitch_vector_decoding AMR pitch vector decoding functions
+/// @name AMR pitch vector decoding functions
 /// @{
 
 /**
@@ -403,7 +403,7 @@ static void decode_pitch_vector(AMRContext *p,
 /// @}
 
 
-/// @defgroup amr_algebraic_code_book AMR algebraic code book (fixed) vector decoding functions
+/// @name AMR algebraic code book (fixed) vector decoding functions
 /// @{
 
 /**
@@ -547,7 +547,7 @@ static void pitch_sharpening(AMRContext *p, int subframe, enum Mode mode,
 /// @}
 
 
-/// @defgroup amr_gain_decoding AMR gain decoding functions
+/// @name AMR gain decoding functions
 /// @{
 
 /**
@@ -633,7 +633,7 @@ static void decode_gains(AMRContext *p, const AMRNBSubframe *amr_subframe,
 /// @}
 
 
-/// @defgroup amr_pre_processing AMR pre-processing functions
+/// @name AMR preprocessing functions
 /// @{
 
 /**
@@ -751,7 +751,7 @@ static const float *anti_sparseness(AMRContext *p, AMRFixed *fixed_sparse,
 /// @}
 
 
-/// @defgroup amr_synthesis AMR synthesis functions
+/// @name AMR synthesis functions
 /// @{
 
 /**
@@ -812,7 +812,7 @@ static int synthesis(AMRContext *p, float *lpc,
 /// @}
 
 
-/// @defgroup amr_update AMR update functions
+/// @name AMR update functions
 /// @{
 
 /**
@@ -837,7 +837,7 @@ static void update_state(AMRContext *p)
 /// @}
 
 
-/// @defgroup amr_postproc AMR Post processing functions
+/// @name AMR Postprocessing functions
 /// @{
 
 /**
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c
index d5a7efd94d..f92b37527e 100644
--- a/libavcodec/apedec.c
+++ b/libavcodec/apedec.c
@@ -217,7 +217,7 @@ static av_cold int ape_decode_close(AVCodecContext * avctx)
 }
 
 /**
- * @defgroup rangecoder APE range decoder
+ * @name APE range decoding functions
  * @{
  */
 
diff --git a/libavcodec/ass.h b/libavcodec/ass.h
index d350cf3fc2..594b5f3ac6 100644
--- a/libavcodec/ass.h
+++ b/libavcodec/ass.h
@@ -25,8 +25,7 @@
 #include "avcodec.h"
 
 /**
- * Default values for ASS style.
- * @defgroup ass_default
+ * @name Default values for ASS style
  * @{
  */
 #define ASS_DEFAULT_FONT        "Arial"
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 1a45009968..45785e4d82 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2488,7 +2488,7 @@ typedef struct AVCodecContext {
 
 #if FF_API_FLAC_GLOBAL_OPTS
     /**
-     * @defgroup flac_opts FLAC options
+     * @name FLAC options
      * @deprecated Use FLAC encoder private options instead.
      * @{
      */
@@ -2897,7 +2897,7 @@ typedef struct AVCodec {
     const AVProfile *profiles;              ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
 
     /**
-     * @defgroup framethreading Frame-level threading support functions.
+     * @name Frame-level threading support functions
      * @{
      */
     /**
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 3abf895010..e3cc815565 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -507,7 +507,7 @@ typedef struct H264Context{
     int          cabac_init_idc;
 
     /**
-     * @defgroup multithreading Members for slice based multithreading
+     * @name Members for slice based multithreading
      * @{
      */
     struct H264Context *thread_context[MAX_THREADS];
diff --git a/libavcodec/qcelpdata.h b/libavcodec/qcelpdata.h
index 457e856fa3..5822299348 100644
--- a/libavcodec/qcelpdata.h
+++ b/libavcodec/qcelpdata.h
@@ -38,14 +38,14 @@
  * QCELP unpacked data frame
  */
 typedef struct {
-/// @defgroup qcelp_codebook_parameters QCELP excitation codebook parameters
+/// @name QCELP excitation codebook parameters
 /// @{
     uint8_t cbsign[16]; ///!< sign of the codebook gain for each codebook subframe
     uint8_t cbgain[16]; ///!< unsigned codebook gain for each codebook subframe
     uint8_t cindex[16]; ///!< codebook index for each codebook subframe
 /// @}
 
-/// @defgroup qcelp_pitch_parameters QCELP pitch prediction parameters
+/// @name QCELP pitch prediction parameters
 /// @{
     uint8_t plag[4];    ///!< pitch lag for each pitch subframe
     uint8_t pfrac[4];   ///!< fractional pitch lag for each pitch subframe
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index b5d314cf0f..c5dcfdcba4 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -62,8 +62,10 @@ static const int rv34_mb_type_to_lavc[12] = {
 
 static RV34VLC intra_vlcs[NUM_INTRA_TABLES], inter_vlcs[NUM_INTER_TABLES];
 
+static int rv34_decode_mv(RV34DecContext *r, int block_type);
+
 /**
- * @defgroup vlc RV30/40 VLC generating functions
+ * @name RV30/40 VLC generating functions
  * @{
  */
 
@@ -171,7 +173,7 @@ static av_cold void rv34_init_tables(void)
 
 
 /**
- * @defgroup transform RV30/40 inverse transform functions
+ * @name RV30/40 inverse transform functions
  * @{
  */
 
@@ -246,7 +248,7 @@ static void rv34_inv_transform_noround(DCTELEM *block){
 
 
 /**
- * @defgroup block RV30/40 4x4 block decoding functions
+ * @name RV30/40 4x4 block decoding functions
  * @{
  */
 
@@ -393,7 +395,7 @@ static inline void rv34_dequant4x4_16x16(DCTELEM *block, int Qdc, int Q)
 
 
 /**
- * @defgroup rv3040_bitstream RV30/40 bitstream parsing
+ * @name RV30/40 bitstream parsing
  * @{
  */
 
@@ -432,10 +434,76 @@ static inline int rv34_decode_dquant(GetBitContext *gb, int quant)
         return get_bits(gb, 5);
 }
 
+/**
+ * Decode macroblock header and return CBP in case of success, -1 otherwise.
+ */
+static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
+{
+    MpegEncContext *s = &r->s;
+    GetBitContext *gb = &s->gb;
+    int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+    int i, t;
+
+    if(!r->si.type){
+        r->is16 = get_bits1(gb);
+        if(!r->is16 && !r->rv30){
+            if(!get_bits1(gb))
+                av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
+        }
+        s->current_picture_ptr->mb_type[mb_pos] = r->is16 ? MB_TYPE_INTRA16x16 : MB_TYPE_INTRA;
+        r->block_type = r->is16 ? RV34_MB_TYPE_INTRA16x16 : RV34_MB_TYPE_INTRA;
+    }else{
+        r->block_type = r->decode_mb_info(r);
+        if(r->block_type == -1)
+            return -1;
+        s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
+        r->mb_type[mb_pos] = r->block_type;
+        if(r->block_type == RV34_MB_SKIP){
+            if(s->pict_type == AV_PICTURE_TYPE_P)
+                r->mb_type[mb_pos] = RV34_MB_P_16x16;
+            if(s->pict_type == AV_PICTURE_TYPE_B)
+                r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
+        }
+        r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]);
+        rv34_decode_mv(r, r->block_type);
+        if(r->block_type == RV34_MB_SKIP){
+            fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
+            return 0;
+        }
+        r->chroma_vlc = 1;
+        r->luma_vlc   = 0;
+    }
+    if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
+        if(r->is16){
+            t = get_bits(gb, 2);
+            fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
+            r->luma_vlc   = 2;
+        }else{
+            if(r->decode_intra_types(r, gb, intra_types) < 0)
+                return -1;
+            r->luma_vlc   = 1;
+        }
+        r->chroma_vlc = 0;
+        r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
+    }else{
+        for(i = 0; i < 16; i++)
+            intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0;
+        r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
+        if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){
+            r->is16 = 1;
+            r->chroma_vlc = 1;
+            r->luma_vlc   = 2;
+            r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
+        }
+    }
+
+    return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
+}
+
 /** @} */ //bitstream functions
 
 /**
- * @defgroup mv motion vector related code (prediction, reconstruction, motion compensation)
+ * @name motion vector related code (prediction, reconstruction, motion compensation)
  * @{
  */
 
@@ -885,7 +953,7 @@ static int rv34_decode_mv(RV34DecContext *r, int block_type)
 /** @} */ // mv group
 
 /**
- * @defgroup recons Macroblock reconstruction functions
+ * @name Macroblock reconstruction functions
  * @{
  */
 /** mapping of RV30/40 intra prediction types to standard H.264 types */
@@ -1027,79 +1095,6 @@ static void rv34_output_macroblock(RV34DecContext *r, int8_t *intra_types, int c
     }
 }
 
-/** @} */ // recons group
-
-/**
- * @addtogroup bitstream
- * Decode macroblock header and return CBP in case of success, -1 otherwise.
- */
-static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
-{
-    MpegEncContext *s = &r->s;
-    GetBitContext *gb = &s->gb;
-    int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
-    int i, t;
-
-    if(!r->si.type){
-        r->is16 = get_bits1(gb);
-        if(!r->is16 && !r->rv30){
-            if(!get_bits1(gb))
-                av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
-        }
-        s->current_picture_ptr->mb_type[mb_pos] = r->is16 ? MB_TYPE_INTRA16x16 : MB_TYPE_INTRA;
-        r->block_type = r->is16 ? RV34_MB_TYPE_INTRA16x16 : RV34_MB_TYPE_INTRA;
-    }else{
-        r->block_type = r->decode_mb_info(r);
-        if(r->block_type == -1)
-            return -1;
-        s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
-        r->mb_type[mb_pos] = r->block_type;
-        if(r->block_type == RV34_MB_SKIP){
-            if(s->pict_type == AV_PICTURE_TYPE_P)
-                r->mb_type[mb_pos] = RV34_MB_P_16x16;
-            if(s->pict_type == AV_PICTURE_TYPE_B)
-                r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
-        }
-        r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]);
-        rv34_decode_mv(r, r->block_type);
-        if(r->block_type == RV34_MB_SKIP){
-            fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
-            return 0;
-        }
-        r->chroma_vlc = 1;
-        r->luma_vlc   = 0;
-    }
-    if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
-        if(r->is16){
-            t = get_bits(gb, 2);
-            fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
-            r->luma_vlc   = 2;
-        }else{
-            if(r->decode_intra_types(r, gb, intra_types) < 0)
-                return -1;
-            r->luma_vlc   = 1;
-        }
-        r->chroma_vlc = 0;
-        r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
-    }else{
-        for(i = 0; i < 16; i++)
-            intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0;
-        r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
-        if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){
-            r->is16 = 1;
-            r->chroma_vlc = 1;
-            r->luma_vlc   = 2;
-            r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
-        }
-    }
-
-    return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
-}
-
-/**
- * @addtogroup recons
- * @{
- */
 /**
  * mask for retrieving all bits in coded block pattern
  * corresponding to one 8x8 block
@@ -1109,6 +1104,8 @@ static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
 #define U_CBP_MASK 0x0F0000
 #define V_CBP_MASK 0xF00000
 
+/** @} */ // recons group
+
 
 static void rv34_apply_differences(RV34DecContext *r, int cbp)
 {
diff --git a/libavcodec/rv40data.h b/libavcodec/rv40data.h
index 4787075742..1b6e8c31b1 100644
--- a/libavcodec/rv40data.h
+++ b/libavcodec/rv40data.h
@@ -65,7 +65,7 @@ static const uint8_t rv40_luma_dc_quant[2][32] = {
 };
 
 /**
- * @defgroup loopfilter coefficients used by the RV40 loop filter
+ * @name Coefficients used by the RV40 loop filter
  * @{
  */
 /**
diff --git a/libavcodec/sbr.h b/libavcodec/sbr.h
index cbf3e23e6b..5b0f334219 100644
--- a/libavcodec/sbr.h
+++ b/libavcodec/sbr.h
@@ -42,7 +42,7 @@ typedef struct {
     uint8_t bs_xover_band;
 
     /**
-     * @defgroup bs_header_extra_1     Variables associated with bs_header_extra_1
+     * @name Variables associated with bs_header_extra_1
      * @{
      */
     uint8_t bs_freq_scale;
@@ -58,7 +58,7 @@ typedef struct {
  */
 typedef struct {
     /**
-     * @defgroup aac_bitstream     Main bitstream data variables
+     * @name Main bitstream data variables
      * @{
      */
     unsigned           bs_frame_class;
@@ -74,7 +74,7 @@ typedef struct {
     /** @} */
 
     /**
-     * @defgroup state         State variables
+     * @name State variables
      * @{
      */
     DECLARE_ALIGNED(16, float, synthesis_filterbank_samples)[SBR_SYNTHESIS_BUF_SIZE];
@@ -116,7 +116,7 @@ typedef struct {
     SpectrumParameters spectrum_params;
     int                bs_amp_res_header;
     /**
-     * @defgroup bs_header_extra_2     variables associated with bs_header_extra_2
+     * @name Variables associated with bs_header_extra_2
      * @{
      */
     unsigned           bs_limiter_bands;
diff --git a/libavcodec/tableprint.h b/libavcodec/tableprint.h
index f6c72fe716..6f46a7cc8a 100644
--- a/libavcodec/tableprint.h
+++ b/libavcodec/tableprint.h
@@ -56,7 +56,7 @@ void write_##type##_2d_array(const void *arg, int len, int len2)\
 }
 
 /**
- * @defgroup printfuncs Predefined functions for printing tables
+ * @name Predefined functions for printing tables
  *
  * \{
  */
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index 7b878c18d7..32869b97d1 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -40,7 +40,7 @@
 
 /***********************************************************************/
 /**
- * @defgroup vc1bitplane VC-1 Bitplane decoding
+ * @name VC-1 Bitplane decoding
  * @see 8.7, p56
  * @{
  */
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 186610ea95..8fca2da738 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -137,7 +137,7 @@ static int vc1_init_common(VC1Context *v)
 
 /***********************************************************************/
 /**
- * @defgroup vc1bitplane VC-1 Bitplane decoding
+ * @name VC-1 Bitplane decoding
  * @see 8.7, p56
  * @{
  */
@@ -774,7 +774,7 @@ static void vc1_mc_4mv_chroma(VC1Context *v)
 
 /***********************************************************************/
 /**
- * @defgroup vc1block VC-1 Block-level functions
+ * @name VC-1 Block-level functions
  * @see 7.1.4, p91 and 8.1.1.7, p(1)04
  * @{
  */
@@ -1512,7 +1512,7 @@ static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
 /** @} */ // Block group
 
 /**
- * @defgroup vc1_std_mb VC1 Macroblock-level functions in Simple/Main Profiles
+ * @name VC1 Macroblock-level functions in Simple/Main Profiles
  * @see 7.1.4, p91 and 8.1.1.7, p(1)04
  * @{
  */
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c
index 4e69b83b32..eb3bcb0629 100644
--- a/libavcodec/wmavoice.c
+++ b/libavcodec/wmavoice.c
@@ -128,9 +128,7 @@ static const struct frame_type_desc {
  */
 typedef struct {
     /**
-     * @defgroup struct_global Global values
-     * Global values, specified in the stream header / extradata or used
-     * all over.
+     * @name Global values specified in the stream header / extradata or used all over.
      * @{
      */
     GetBitContext gb;             ///< packet bitreader. During decoder init,
@@ -182,8 +180,9 @@ typedef struct {
 
     /**
      * @}
-     * @defgroup struct_packet Packet values
-     * Packet values, specified in the packet header or related to a packet.
+     *
+     * @name Packet values specified in the packet header or related to a packet.
+     *
      * A packet is considered to be a single unit of data provided to this
      * decoder by the demuxer.
      * @{
@@ -213,7 +212,8 @@ typedef struct {
 
     /**
      * @}
-     * @defgroup struct_frame Frame and superframe values
+     *
+     * @name Frame and superframe values
      * Superframe and frame data - these can change from frame to frame,
      * although some of them do in that case serve as a cache / history for
      * the next frame or superframe.
@@ -256,7 +256,9 @@ typedef struct {
     float synth_history[MAX_LSPS]; ///< see #excitation_history
     /**
      * @}
-     * @defgroup post_filter Postfilter values
+     *
+     * @name Postfilter values
+     *
      * Variables used for postfilter implementation, mostly history for
      * smoothing and so on, and context variables for FFT/iFFT.
      * @{
@@ -432,7 +434,7 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
 }
 
 /**
- * @defgroup postfilter Postfilter functions
+ * @name Postfilter functions
  * Postfilter functions (gain control, wiener denoise filter, DC filter,
  * kalman smoothening, plus surrounding code to wrap it)
  * @{
@@ -825,7 +827,7 @@ static void dequant_lsps(double *lsps, int num,
 }
 
 /**
- * @defgroup lsp_dequant LSP dequantization routines
+ * @name LSP dequantization routines
  * LSP dequantization routines, for 10/16LSPs and independent/residual coding.
  * @note we assume enough bits are available, caller should check.
  * lsp10i() consumes 24 bits; lsp10r() consumes an additional 24 bits;
@@ -969,7 +971,7 @@ static void dequant_lsp16r(GetBitContext *gb,
 
 /**
  * @}
- * @defgroup aw Pitch-adaptive window coding functions
+ * @name Pitch-adaptive window coding functions
  * The next few functions are for pitch-adaptive window coding.
  * @{
  */
diff --git a/libavformat/avio.h b/libavformat/avio.h
index bb2d9f85a6..be14e3c89d 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -145,7 +145,7 @@ typedef struct URLPollEntry {
 attribute_deprecated int url_poll(URLPollEntry *poll_table, int n, int timeout);
 
 /**
- * @defgroup open_modes URL open modes
+ * @name URL open modes
  * The flags argument to url_open and cosins must be one of the following
  * constants, optionally ORed with other flags.
  * @{
@@ -176,7 +176,7 @@ extern URLInterruptCB *url_interrupt_cb;
 
 /**
  * @defgroup old_url_funcs Old url_* functions
- * @deprecated use the buffered API based on AVIOContext instead
+ * The following functions are deprecated. Use the buffered API based on #AVIOContext instead.
  * @{
  */
 attribute_deprecated int url_open_protocol (URLContext **puc, struct URLProtocol *up,
@@ -235,7 +235,7 @@ attribute_deprecated AVIOContext *av_alloc_put_byte(
 
 /**
  * @defgroup old_avio_funcs Old put_/get_*() functions
- * @deprecated use the avio_ -prefixed functions instead.
+ * The following functions are deprecated. Use the "avio_"-prefixed functions instead.
  * @{
  */
 attribute_deprecated int          get_buffer(AVIOContext *s, unsigned char *buf, int size);
@@ -272,7 +272,7 @@ attribute_deprecated int64_t av_url_read_fseek (AVIOContext *h,    int stream_in
 
 /**
  * @defgroup old_url_f_funcs Old url_f* functions
- * @deprecated use the avio_ -prefixed functions instead.
+ * The following functions are deprecated, use the "avio_"-prefixed functions instead.
  * @{
  */
 attribute_deprecated int url_fopen( AVIOContext **s, const char *url, int flags);
@@ -471,7 +471,7 @@ void avio_flush(AVIOContext *s);
 int avio_read(AVIOContext *s, unsigned char *buf, int size);
 
 /**
- * @defgroup avio_read Functions for reading from AVIOContext.
+ * @name Functions for reading from AVIOContext
  * @{
  *
  * @note return 0 if EOF, so you cannot use it if EOF handling is
@@ -515,7 +515,7 @@ int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
 
 
 /**
- * @defgroup open_modes URL open modes
+ * @name URL open modes
  * The flags argument to avio_open must be one of the following
  * constants, optionally ORed with other flags.
  * @{
diff --git a/libavformat/rtmppkt.h b/libavformat/rtmppkt.h
index bb3475811e..8372484fbd 100644
--- a/libavformat/rtmppkt.h
+++ b/libavformat/rtmppkt.h
@@ -138,7 +138,7 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *p,
 void ff_rtmp_packet_dump(void *ctx, RTMPPacket *p);
 
 /**
- * @defgroup amffuncs functions used to work with AMF format (which is also used in .flv)
+ * @name Functions used to work with the AMF format (which is also used in .flv)
  * @see amf_* funcs in libavformat/flvdec.c
  * @{
  */
diff --git a/libavutil/lzo.h b/libavutil/lzo.h
index 41ee6b1d67..be86bba6bc 100644
--- a/libavutil/lzo.h
+++ b/libavutil/lzo.h
@@ -24,7 +24,7 @@
 
 #include <stdint.h>
 
-/** @defgroup errflags Error flags returned by av_lzo1x_decode
+/** @name Error flags returned by av_lzo1x_decode
   * \{ */
 //! end of the input buffer reached before decoding finished
 #define AV_LZO_INPUT_DEPLETED 1